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Finding the Fourth Proportional to 63,132.52, 94,714.20 and 21,012.52

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Solution

The fourth proportional to 63,132.52, 94,714.20 and 21,012.52 is: 31,523.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,132.52 : 94,714.20 = 21,012.52 : x
  2. Step 2: Convert to fraction form
    63,132.52/94,714.20 = 21,012.52/x
  3. Step 3: Cross multiply
    63,132.52x = 94,714.20 × 21,012.52
  4. Step 4: Simplify right side
    63,132.52x = 1,990,184,021.78
  5. Step 5: Solve for x
    x = 1,990,184,021.78/63,132.52
  6. Step 6: Final answer
    x = 31,523.91

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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.