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Finding the Fourth Proportional to 71,863.81, 99,162.84 and 41,648.92

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Solution

The fourth proportional to 71,863.81, 99,162.84 and 41,648.92 is: 57,470.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,863.81 : 99,162.84 = 41,648.92 : x
  2. Step 2: Convert to fraction form
    71,863.81/99,162.84 = 41,648.92/x
  3. Step 3: Cross multiply
    71,863.81x = 99,162.84 × 41,648.92
  4. Step 4: Simplify right side
    71,863.81x = 4,130,025,190.13
  5. Step 5: Solve for x
    x = 4,130,025,190.13/71,863.81
  6. Step 6: Final answer
    x = 57,470.17

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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.