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Finding the Fourth Proportional to 62,684.47, 86,505.99 and 34,390.03

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Solution

The fourth proportional to 62,684.47, 86,505.99 and 34,390.03 is: 47,459.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,684.47 : 86,505.99 = 34,390.03 : x
  2. Step 2: Convert to fraction form
    62,684.47/86,505.99 = 34,390.03/x
  3. Step 3: Cross multiply
    62,684.47x = 86,505.99 × 34,390.03
  4. Step 4: Simplify right side
    62,684.47x = 2,974,943,591.28
  5. Step 5: Solve for x
    x = 2,974,943,591.28/62,684.47
  6. Step 6: Final answer
    x = 47,459.02

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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.