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Finding the Fourth Proportional to 66,414.52, 99,621.60 and 22,044.61

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Solution

The fourth proportional to 66,414.52, 99,621.60 and 22,044.61 is: 33,066.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,414.52 : 99,621.60 = 22,044.61 : x
  2. Step 2: Convert to fraction form
    66,414.52/99,621.60 = 22,044.61/x
  3. Step 3: Cross multiply
    66,414.52x = 99,621.60 × 22,044.61
  4. Step 4: Simplify right side
    66,414.52x = 2,196,119,319.58
  5. Step 5: Solve for x
    x = 2,196,119,319.58/66,414.52
  6. Step 6: Final answer
    x = 33,066.86

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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.