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Finding the Fourth Proportional to 63,688.65, 87,888.43 and 36,463.83

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Solution

The fourth proportional to 63,688.65, 87,888.43 and 36,463.83 is: 50,318.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,688.65 : 87,888.43 = 36,463.83 : x
  2. Step 2: Convert to fraction form
    63,688.65/87,888.43 = 36,463.83/x
  3. Step 3: Cross multiply
    63,688.65x = 87,888.43 × 36,463.83
  4. Step 4: Simplify right side
    63,688.65x = 3,204,748,770.49
  5. Step 5: Solve for x
    x = 3,204,748,770.49/63,688.65
  6. Step 6: Final answer
    x = 50,318.99

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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.