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Finding the Fourth Proportional to 41,157.92, 61,736.96 and 9,993.12

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Solution

The fourth proportional to 41,157.92, 61,736.96 and 9,993.12 is: 14,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,157.92 : 61,736.96 = 9,993.12 : x
  2. Step 2: Convert to fraction form
    41,157.92/61,736.96 = 9,993.12/x
  3. Step 3: Cross multiply
    41,157.92x = 61,736.96 × 9,993.12
  4. Step 4: Simplify right side
    41,157.92x = 616,944,849.72
  5. Step 5: Solve for x
    x = 616,944,849.72/41,157.92
  6. Step 6: Final answer
    x = 14,989.70

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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.