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Finding the Fourth Proportional to 36,471.72, 54,707.56 and 8,769.72

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Solution

The fourth proportional to 36,471.72, 54,707.56 and 8,769.72 is: 13,154.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,471.72 : 54,707.56 = 8,769.72 : x
  2. Step 2: Convert to fraction form
    36,471.72/54,707.56 = 8,769.72/x
  3. Step 3: Cross multiply
    36,471.72x = 54,707.56 × 8,769.72
  4. Step 4: Simplify right side
    36,471.72x = 479,769,983.08
  5. Step 5: Solve for x
    x = 479,769,983.08/36,471.72
  6. Step 6: Final answer
    x = 13,154.58

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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.