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Finding the Fourth Proportional to 36,861.70, 55,292.58 and 9,159.70

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Solution

The fourth proportional to 36,861.70, 55,292.58 and 9,159.70 is: 13,739.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,861.70 : 55,292.58 = 9,159.70 : x
  2. Step 2: Convert to fraction form
    36,861.70/55,292.58 = 9,159.70/x
  3. Step 3: Cross multiply
    36,861.70x = 55,292.58 × 9,159.70
  4. Step 4: Simplify right side
    36,861.70x = 506,463,168.56
  5. Step 5: Solve for x
    x = 506,463,168.56/36,861.70
  6. Step 6: Final answer
    x = 13,739.55

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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.