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Finding the Fourth Proportional to 5,654.57, 7,803.29 and 3,170.57

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Solution

The fourth proportional to 5,654.57, 7,803.29 and 3,170.57 is: 4,375.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,654.57 : 7,803.29 = 3,170.57 : x
  2. Step 2: Convert to fraction form
    5,654.57/7,803.29 = 3,170.57/x
  3. Step 3: Cross multiply
    5,654.57x = 7,803.29 × 3,170.57
  4. Step 4: Simplify right side
    5,654.57x = 24,740,877.18
  5. Step 5: Solve for x
    x = 24,740,877.18/5,654.57
  6. Step 6: Final answer
    x = 4,375.38

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Find fourth proportional to 2,827.29, 3,901.65 and 1,585.29
Half scale
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Double scale
Find fourth proportional to 5,655.57, 7,804.67 and 3,171.57
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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.