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Finding the Fourth Proportional to 40,494.87, 55,917.27 and 25,412.67

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Solution

The fourth proportional to 40,494.87, 55,917.27 and 25,412.67 is: 35,091.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,494.87 : 55,917.27 = 25,412.67 : x
  2. Step 2: Convert to fraction form
    40,494.87/55,917.27 = 25,412.67/x
  3. Step 3: Cross multiply
    40,494.87x = 55,917.27 × 25,412.67
  4. Step 4: Simplify right side
    40,494.87x = 1,421,007,129.81
  5. Step 5: Solve for x
    x = 1,421,007,129.81/40,494.87
  6. Step 6: Final answer
    x = 35,091.04

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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.