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Finding the Fourth Proportional to 66,948.70, 100,423.36 and 22,575.82

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Solution

The fourth proportional to 66,948.70, 100,423.36 and 22,575.82 is: 33,863.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,948.70 : 100,423.36 = 22,575.82 : x
  2. Step 2: Convert to fraction form
    66,948.70/100,423.36 = 22,575.82/x
  3. Step 3: Cross multiply
    66,948.70x = 100,423.36 × 22,575.82
  4. Step 4: Simplify right side
    66,948.70x = 2,267,139,699.16
  5. Step 5: Solve for x
    x = 2,267,139,699.16/66,948.70
  6. Step 6: Final answer
    x = 33,863.83

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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.