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Finding the Fourth Proportional to 66,487.34, 99,697.80 and 22,098.54

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Solution

The fourth proportional to 66,487.34, 99,697.80 and 22,098.54 is: 33,136.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,487.34 : 99,697.80 = 22,098.54 : x
  2. Step 2: Convert to fraction form
    66,487.34/99,697.80 = 22,098.54/x
  3. Step 3: Cross multiply
    66,487.34x = 99,697.80 × 22,098.54
  4. Step 4: Simplify right side
    66,487.34x = 2,203,175,821.21
  5. Step 5: Solve for x
    x = 2,203,175,821.21/66,487.34
  6. Step 6: Final answer
    x = 33,136.77

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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.