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Finding the Fourth Proportional to 36,958.56, 55,487.12 and 31,447.32

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Solution

The fourth proportional to 36,958.56, 55,487.12 and 31,447.32 is: 47,212.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,958.56 : 55,487.12 = 31,447.32 : x
  2. Step 2: Convert to fraction form
    36,958.56/55,487.12 = 31,447.32/x
  3. Step 3: Cross multiply
    36,958.56x = 55,487.12 × 31,447.32
  4. Step 4: Simplify right side
    36,958.56x = 1,744,921,061.28
  5. Step 5: Solve for x
    x = 1,744,921,061.28/36,958.56
  6. Step 6: Final answer
    x = 47,212.91

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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.