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Finding the Fourth Proportional to 63,281.76, 87,332.07 and 36,428.13

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Solution

The fourth proportional to 63,281.76, 87,332.07 and 36,428.13 is: 50,272.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,281.76 : 87,332.07 = 36,428.13 : x
  2. Step 2: Convert to fraction form
    63,281.76/87,332.07 = 36,428.13/x
  3. Step 3: Cross multiply
    63,281.76x = 87,332.07 × 36,428.13
  4. Step 4: Simplify right side
    63,281.76x = 3,181,344,135.73
  5. Step 5: Solve for x
    x = 3,181,344,135.73/63,281.76
  6. Step 6: Final answer
    x = 50,272.69

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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.