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Finding the Fourth Proportional to 7,654.68, 10,561.74 and 4,511.16

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Solution

The fourth proportional to 7,654.68, 10,561.74 and 4,511.16 is: 6,224.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,654.68 : 10,561.74 = 4,511.16 : x
  2. Step 2: Convert to fraction form
    7,654.68/10,561.74 = 4,511.16/x
  3. Step 3: Cross multiply
    7,654.68x = 10,561.74 × 4,511.16
  4. Step 4: Simplify right side
    7,654.68x = 47,645,699.02
  5. Step 5: Solve for x
    x = 47,645,699.02/7,654.68
  6. Step 6: Final answer
    x = 6,224.39

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Find fourth proportional to 3,827.34, 5,280.87 and 2,255.58
Half scale
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Double scale
Find fourth proportional to 7,655.68, 10,563.12 and 4,512.16
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.