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Finding the Fourth Proportional to 41,242.54, 61,753.09 and 21,479.58

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Solution

The fourth proportional to 41,242.54, 61,753.09 and 21,479.58 is: 32,161.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,242.54 : 61,753.09 = 21,479.58 : x
  2. Step 2: Convert to fraction form
    41,242.54/61,753.09 = 21,479.58/x
  3. Step 3: Cross multiply
    41,242.54x = 61,753.09 × 21,479.58
  4. Step 4: Simplify right side
    41,242.54x = 1,326,430,020.74
  5. Step 5: Solve for x
    x = 1,326,430,020.74/41,242.54
  6. Step 6: Final answer
    x = 32,161.70

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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.