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Finding the Fourth Proportional to 63,388.82, 87,470.51 and 37,890.14

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Solution

The fourth proportional to 63,388.82, 87,470.51 and 37,890.14 is: 52,284.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,388.82 : 87,470.51 = 37,890.14 : x
  2. Step 2: Convert to fraction form
    63,388.82/87,470.51 = 37,890.14/x
  3. Step 3: Cross multiply
    63,388.82x = 87,470.51 × 37,890.14
  4. Step 4: Simplify right side
    63,388.82x = 3,314,269,242.97
  5. Step 5: Solve for x
    x = 3,314,269,242.97/63,388.82
  6. Step 6: Final answer
    x = 52,284.76

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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.