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Finding the Fourth Proportional to 63,310.68, 87,390.72 and 36,463.90

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Solution

The fourth proportional to 63,310.68, 87,390.72 and 36,463.90 is: 50,332.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,310.68 : 87,390.72 = 36,463.90 : x
  2. Step 2: Convert to fraction form
    63,310.68/87,390.72 = 36,463.90/x
  3. Step 3: Cross multiply
    63,310.68x = 87,390.72 × 36,463.90
  4. Step 4: Simplify right side
    63,310.68x = 3,186,606,475.01
  5. Step 5: Solve for x
    x = 3,186,606,475.01/63,310.68
  6. Step 6: Final answer
    x = 50,332.84

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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.