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Finding the Fourth Proportional to 66,425.61, 99,616.71 and 22,040.43

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Solution

The fourth proportional to 66,425.61, 99,616.71 and 22,040.43 is: 33,053.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,425.61 : 99,616.71 = 22,040.43 : x
  2. Step 2: Convert to fraction form
    66,425.61/99,616.71 = 22,040.43/x
  3. Step 3: Cross multiply
    66,425.61x = 99,616.71 × 22,040.43
  4. Step 4: Simplify right side
    66,425.61x = 2,195,595,123.59
  5. Step 5: Solve for x
    x = 2,195,595,123.59/66,425.61
  6. Step 6: Final answer
    x = 33,053.44

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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.