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Finding the Fourth Proportional to 7,699.61, 10,627.11 and 4,865.18

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Solution

The fourth proportional to 7,699.61, 10,627.11 and 4,865.18 is: 6,714.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,699.61 : 10,627.11 = 4,865.18 : x
  2. Step 2: Convert to fraction form
    7,699.61/10,627.11 = 4,865.18/x
  3. Step 3: Cross multiply
    7,699.61x = 10,627.11 × 4,865.18
  4. Step 4: Simplify right side
    7,699.61x = 51,702,795.99
  5. Step 5: Solve for x
    x = 51,702,795.99/7,699.61
  6. Step 6: Final answer
    x = 6,714.99

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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.