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Finding the Fourth Proportional to 63,454.70, 95,115.07 and 21,294.81

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Solution

The fourth proportional to 63,454.70, 95,115.07 and 21,294.81 is: 31,919.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,454.70 : 95,115.07 = 21,294.81 : x
  2. Step 2: Convert to fraction form
    63,454.70/95,115.07 = 21,294.81/x
  3. Step 3: Cross multiply
    63,454.70x = 95,115.07 × 21,294.81
  4. Step 4: Simplify right side
    63,454.70x = 2,025,457,343.79
  5. Step 5: Solve for x
    x = 2,025,457,343.79/63,454.70
  6. Step 6: Final answer
    x = 31,919.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.