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Finding the Fourth Proportional to 63,437.80, 87,542.82 and 36,580.20

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Solution

The fourth proportional to 63,437.80, 87,542.82 and 36,580.20 is: 50,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,437.80 : 87,542.82 = 36,580.20 : x
  2. Step 2: Convert to fraction form
    63,437.80/87,542.82 = 36,580.20/x
  3. Step 3: Cross multiply
    63,437.80x = 87,542.82 × 36,580.20
  4. Step 4: Simplify right side
    63,437.80x = 3,202,333,864.16
  5. Step 5: Solve for x
    x = 3,202,333,864.16/63,437.80
  6. Step 6: Final answer
    x = 50,479.90

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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.