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Finding the Fourth Proportional to 36,207.70, 54,311.55 and 15,471.70

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Solution

The fourth proportional to 36,207.70, 54,311.55 and 15,471.70 is: 23,207.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,207.70 : 54,311.55 = 15,471.70 : x
  2. Step 2: Convert to fraction form
    36,207.70/54,311.55 = 15,471.70/x
  3. Step 3: Cross multiply
    36,207.70x = 54,311.55 × 15,471.70
  4. Step 4: Simplify right side
    36,207.70x = 840,292,008.14
  5. Step 5: Solve for x
    x = 840,292,008.14/36,207.70
  6. Step 6: Final answer
    x = 23,207.55

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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.