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Finding the Fourth Proportional to 63,721.52, 87,910.44 and 36,859.04

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Solution

The fourth proportional to 63,721.52, 87,910.44 and 36,859.04 is: 50,850.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,721.52 : 87,910.44 = 36,859.04 : x
  2. Step 2: Convert to fraction form
    63,721.52/87,910.44 = 36,859.04/x
  3. Step 3: Cross multiply
    63,721.52x = 87,910.44 × 36,859.04
  4. Step 4: Simplify right side
    63,721.52x = 3,240,294,424.38
  5. Step 5: Solve for x
    x = 3,240,294,424.38/63,721.52
  6. Step 6: Final answer
    x = 50,850.87

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1.5x scale

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.