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Finding the Fourth Proportional to 66,434.10, 99,655.20 and 22,064.73

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Solution

The fourth proportional to 66,434.10, 99,655.20 and 22,064.73 is: 33,098.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,434.10 : 99,655.20 = 22,064.73 : x
  2. Step 2: Convert to fraction form
    66,434.10/99,655.20 = 22,064.73/x
  3. Step 3: Cross multiply
    66,434.10x = 99,655.20 × 22,064.73
  4. Step 4: Simplify right side
    66,434.10x = 2,198,865,081.10
  5. Step 5: Solve for x
    x = 2,198,865,081.10/66,434.10
  6. Step 6: Final answer
    x = 33,098.44

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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.