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Finding the Fourth Proportional to 40,781.92, 61,089.84 and 37,379.92

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Solution

The fourth proportional to 40,781.92, 61,089.84 and 37,379.92 is: 55,993.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,781.92 : 61,089.84 = 37,379.92 : x
  2. Step 2: Convert to fraction form
    40,781.92/61,089.84 = 37,379.92/x
  3. Step 3: Cross multiply
    40,781.92x = 61,089.84 × 37,379.92
  4. Step 4: Simplify right side
    40,781.92x = 2,283,533,332.01
  5. Step 5: Solve for x
    x = 2,283,533,332.01/40,781.92
  6. Step 6: Final answer
    x = 55,993.77

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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.