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Finding the Fourth Proportional to 62,881.31, 94,349.31 and 31,322.90

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Solution

The fourth proportional to 62,881.31, 94,349.31 and 31,322.90 is: 46,997.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,881.31 : 94,349.31 = 31,322.90 : x
  2. Step 2: Convert to fraction form
    62,881.31/94,349.31 = 31,322.90/x
  3. Step 3: Cross multiply
    62,881.31x = 94,349.31 × 31,322.90
  4. Step 4: Simplify right side
    62,881.31x = 2,955,294,120.61
  5. Step 5: Solve for x
    x = 2,955,294,120.61/62,881.31
  6. Step 6: Final answer
    x = 46,997.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.