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Finding the Fourth Proportional to 63,280.97, 87,329.56 and 34,988.48

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Solution

The fourth proportional to 63,280.97, 87,329.56 and 34,988.48 is: 48,285.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,280.97 : 87,329.56 = 34,988.48 : x
  2. Step 2: Convert to fraction form
    63,280.97/87,329.56 = 34,988.48/x
  3. Step 3: Cross multiply
    63,280.97x = 87,329.56 × 34,988.48
  4. Step 4: Simplify right side
    63,280.97x = 3,055,528,432.44
  5. Step 5: Solve for x
    x = 3,055,528,432.44/63,280.97
  6. Step 6: Final answer
    x = 48,285.11

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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.