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Finding the Fourth Proportional to 62,719.26, 86,593.13 and 38,871.26

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Solution

The fourth proportional to 62,719.26, 86,593.13 and 38,871.26 is: 53,667.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,719.26 : 86,593.13 = 38,871.26 : x
  2. Step 2: Convert to fraction form
    62,719.26/86,593.13 = 38,871.26/x
  3. Step 3: Cross multiply
    62,719.26x = 86,593.13 × 38,871.26
  4. Step 4: Simplify right side
    62,719.26x = 3,365,984,070.44
  5. Step 5: Solve for x
    x = 3,365,984,070.44/62,719.26
  6. Step 6: Final answer
    x = 53,667.47

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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.