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Finding the Fourth Proportional to 66,377.48, 99,568.64 and 22,008.11

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Solution

The fourth proportional to 66,377.48, 99,568.64 and 22,008.11 is: 33,012.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,377.48 : 99,568.64 = 22,008.11 : x
  2. Step 2: Convert to fraction form
    66,377.48/99,568.64 = 22,008.11/x
  3. Step 3: Cross multiply
    66,377.48x = 99,568.64 × 22,008.11
  4. Step 4: Simplify right side
    66,377.48x = 2,191,317,138.85
  5. Step 5: Solve for x
    x = 2,191,317,138.85/66,377.48
  6. Step 6: Final answer
    x = 33,012.96

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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.