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Finding the Fourth Proportional to 63,412.84, 87,489.88 and 36,551.68

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Solution

The fourth proportional to 63,412.84, 87,489.88 and 36,551.68 is: 50,429.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,412.84 : 87,489.88 = 36,551.68 : x
  2. Step 2: Convert to fraction form
    63,412.84/87,489.88 = 36,551.68/x
  3. Step 3: Cross multiply
    63,412.84x = 87,489.88 × 36,551.68
  4. Step 4: Simplify right side
    63,412.84x = 3,197,902,097.00
  5. Step 5: Solve for x
    x = 3,197,902,097.00/63,412.84
  6. Step 6: Final answer
    x = 50,429.88

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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.