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Finding the Fourth Proportional to 17,562.78, 26,344.17 and 7,174.53

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Solution

The fourth proportional to 17,562.78, 26,344.17 and 7,174.53 is: 10,761.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,562.78 : 26,344.17 = 7,174.53 : x
  2. Step 2: Convert to fraction form
    17,562.78/26,344.17 = 7,174.53/x
  3. Step 3: Cross multiply
    17,562.78x = 26,344.17 × 7,174.53
  4. Step 4: Simplify right side
    17,562.78x = 189,007,037.99
  5. Step 5: Solve for x
    x = 189,007,037.99/17,562.78
  6. Step 6: Final answer
    x = 10,761.80

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1.5x scale

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.