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Finding the Fourth Proportional to 63,127.40, 94,712.70 and 28,092.20

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Solution

The fourth proportional to 63,127.40, 94,712.70 and 28,092.20 is: 42,147.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,127.40 : 94,712.70 = 28,092.20 : x
  2. Step 2: Convert to fraction form
    63,127.40/94,712.70 = 28,092.20/x
  3. Step 3: Cross multiply
    63,127.40x = 94,712.70 × 28,092.20
  4. Step 4: Simplify right side
    63,127.40x = 2,660,688,110.94
  5. Step 5: Solve for x
    x = 2,660,688,110.94/63,127.40
  6. Step 6: Final answer
    x = 42,147.91

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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.