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Finding the Fourth Proportional to 3,647.86, 5,472.60 and 1,182.22

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Solution

The fourth proportional to 3,647.86, 5,472.60 and 1,182.22 is: 1,773.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,647.86 : 5,472.60 = 1,182.22 : x
  2. Step 2: Convert to fraction form
    3,647.86/5,472.60 = 1,182.22/x
  3. Step 3: Cross multiply
    3,647.86x = 5,472.60 × 1,182.22
  4. Step 4: Simplify right side
    3,647.86x = 6,469,817.17
  5. Step 5: Solve for x
    x = 6,469,817.17/3,647.86
  6. Step 6: Final answer
    x = 1,773.59

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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.