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Finding the Fourth Proportional to 63,452.16, 95,119.92 and 21,870

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Solution

The fourth proportional to 63,452.16, 95,119.92 and 21,870 is: 32,784.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,452.16 : 95,119.92 = 21,870 : x
  2. Step 2: Convert to fraction form
    63,452.16/95,119.92 = 21,870/x
  3. Step 3: Cross multiply
    63,452.16x = 95,119.92 × 21,870
  4. Step 4: Simplify right side
    63,452.16x = 2,080,272,650.40
  5. Step 5: Solve for x
    x = 2,080,272,650.40/63,452.16
  6. Step 6: Final answer
    x = 32,784.90

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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.