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Finding the Fourth Proportional to 40,480.92, 55,861.92 and 29,866.68

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Solution

The fourth proportional to 40,480.92, 55,861.92 and 29,866.68 is: 41,214.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,480.92 : 55,861.92 = 29,866.68 : x
  2. Step 2: Convert to fraction form
    40,480.92/55,861.92 = 29,866.68/x
  3. Step 3: Cross multiply
    40,480.92x = 55,861.92 × 29,866.68
  4. Step 4: Simplify right side
    40,480.92x = 1,668,410,088.83
  5. Step 5: Solve for x
    x = 1,668,410,088.83/40,480.92
  6. Step 6: Final answer
    x = 41,214.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.