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Finding the Fourth Proportional to 66,837.24, 100,248.05 and 26,854.61

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Solution

The fourth proportional to 66,837.24, 100,248.05 and 26,854.61 is: 40,278.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,837.24 : 100,248.05 = 26,854.61 : x
  2. Step 2: Convert to fraction form
    66,837.24/100,248.05 = 26,854.61/x
  3. Step 3: Cross multiply
    66,837.24x = 100,248.05 × 26,854.61
  4. Step 4: Simplify right side
    66,837.24x = 2,692,121,851.91
  5. Step 5: Solve for x
    x = 2,692,121,851.91/66,837.24
  6. Step 6: Final answer
    x = 40,278.77

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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.