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Finding the Fourth Proportional to 63,387.49, 87,472.03 and 34,706.63

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Solution

The fourth proportional to 63,387.49, 87,472.03 and 34,706.63 is: 47,893.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,387.49 : 87,472.03 = 34,706.63 : x
  2. Step 2: Convert to fraction form
    63,387.49/87,472.03 = 34,706.63/x
  3. Step 3: Cross multiply
    63,387.49x = 87,472.03 × 34,706.63
  4. Step 4: Simplify right side
    63,387.49x = 3,035,858,987.90
  5. Step 5: Solve for x
    x = 3,035,858,987.90/63,387.49
  6. Step 6: Final answer
    x = 47,893.66

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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.