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Finding the Fourth Proportional to 63,389.28, 87,468.48 and 36,529.68

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Solution

The fourth proportional to 63,389.28, 87,468.48 and 36,529.68 is: 50,405.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,389.28 : 87,468.48 = 36,529.68 : x
  2. Step 2: Convert to fraction form
    63,389.28/87,468.48 = 36,529.68/x
  3. Step 3: Cross multiply
    63,389.28x = 87,468.48 × 36,529.68
  4. Step 4: Simplify right side
    63,389.28x = 3,195,195,584.49
  5. Step 5: Solve for x
    x = 3,195,195,584.49/63,389.28
  6. Step 6: Final answer
    x = 50,405.93

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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.