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Finding the Fourth Proportional to 63,763.89, 87,984.87 and 38,264.83

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Solution

The fourth proportional to 63,763.89, 87,984.87 and 38,264.83 is: 52,799.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,763.89 : 87,984.87 = 38,264.83 : x
  2. Step 2: Convert to fraction form
    63,763.89/87,984.87 = 38,264.83/x
  3. Step 3: Cross multiply
    63,763.89x = 87,984.87 × 38,264.83
  4. Step 4: Simplify right side
    63,763.89x = 3,366,726,093.12
  5. Step 5: Solve for x
    x = 3,366,726,093.12/63,763.89
  6. Step 6: Final answer
    x = 52,799.89

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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.