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Finding the Fourth Proportional to 63,209.28, 94,738.32 and 28,109.28

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Solution

The fourth proportional to 63,209.28, 94,738.32 and 28,109.28 is: 42,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,209.28 : 94,738.32 = 28,109.28 : x
  2. Step 2: Convert to fraction form
    63,209.28/94,738.32 = 28,109.28/x
  3. Step 3: Cross multiply
    63,209.28x = 94,738.32 × 28,109.28
  4. Step 4: Simplify right side
    63,209.28x = 2,663,025,963.61
  5. Step 5: Solve for x
    x = 2,663,025,963.61/63,209.28
  6. Step 6: Final answer
    x = 42,130.30

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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.