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Finding the Fourth Proportional to 62,618.66, 86,422.60 and 38,753.02

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Solution

The fourth proportional to 62,618.66, 86,422.60 and 38,753.02 is: 53,484.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,618.66 : 86,422.60 = 38,753.02 : x
  2. Step 2: Convert to fraction form
    62,618.66/86,422.60 = 38,753.02/x
  3. Step 3: Cross multiply
    62,618.66x = 86,422.60 × 38,753.02
  4. Step 4: Simplify right side
    62,618.66x = 3,349,136,746.25
  5. Step 5: Solve for x
    x = 3,349,136,746.25/62,618.66
  6. Step 6: Final answer
    x = 53,484.64

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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.