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Finding the Fourth Proportional to 62,783.97, 86,646.11 and 34,489.95

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Solution

The fourth proportional to 62,783.97, 86,646.11 and 34,489.95 is: 47,598.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,783.97 : 86,646.11 = 34,489.95 : x
  2. Step 2: Convert to fraction form
    62,783.97/86,646.11 = 34,489.95/x
  3. Step 3: Cross multiply
    62,783.97x = 86,646.11 × 34,489.95
  4. Step 4: Simplify right side
    62,783.97x = 2,988,420,001.59
  5. Step 5: Solve for x
    x = 2,988,420,001.59/62,783.97
  6. Step 6: Final answer
    x = 47,598.46

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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.