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Finding the Fourth Proportional to 5,373.70, 8,061.12 and 1,478.14

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Solution

The fourth proportional to 5,373.70, 8,061.12 and 1,478.14 is: 2,217.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,373.70 : 8,061.12 = 1,478.14 : x
  2. Step 2: Convert to fraction form
    5,373.70/8,061.12 = 1,478.14/x
  3. Step 3: Cross multiply
    5,373.70x = 8,061.12 × 1,478.14
  4. Step 4: Simplify right side
    5,373.70x = 11,915,463.92
  5. Step 5: Solve for x
    x = 11,915,463.92/5,373.70
  6. Step 6: Final answer
    x = 2,217.37

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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.