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Finding the Fourth Proportional to 66,882.48, 100,339.13 and 22,508.07

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Solution

The fourth proportional to 66,882.48, 100,339.13 and 22,508.07 is: 33,767.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,882.48 : 100,339.13 = 22,508.07 : x
  2. Step 2: Convert to fraction form
    66,882.48/100,339.13 = 22,508.07/x
  3. Step 3: Cross multiply
    66,882.48x = 100,339.13 × 22,508.07
  4. Step 4: Simplify right side
    66,882.48x = 2,258,440,161.78
  5. Step 5: Solve for x
    x = 2,258,440,161.78/66,882.48
  6. Step 6: Final answer
    x = 33,767.29

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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.