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Finding the Fourth Proportional to 1,171.03, 1,755.82 and 1,060.15

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Solution

The fourth proportional to 1,171.03, 1,755.82 and 1,060.15 is: 1,589.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171.03 : 1,755.82 = 1,060.15 : x
  2. Step 2: Convert to fraction form
    1,171.03/1,755.82 = 1,060.15/x
  3. Step 3: Cross multiply
    1,171.03x = 1,755.82 × 1,060.15
  4. Step 4: Simplify right side
    1,171.03x = 1,861,432.57
  5. Step 5: Solve for x
    x = 1,861,432.57/1,171.03
  6. Step 6: Final answer
    x = 1,589.57

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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.