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Finding the Fourth Proportional to 69,763.40, 104,581.81 and 25,358.79

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Solution

The fourth proportional to 69,763.40, 104,581.81 and 25,358.79 is: 38,015.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,763.40 : 104,581.81 = 25,358.79 : x
  2. Step 2: Convert to fraction form
    69,763.40/104,581.81 = 25,358.79/x
  3. Step 3: Cross multiply
    69,763.40x = 104,581.81 × 25,358.79
  4. Step 4: Simplify right side
    69,763.40x = 2,652,068,157.61
  5. Step 5: Solve for x
    x = 2,652,068,157.61/69,763.40
  6. Step 6: Final answer
    x = 38,015.18

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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.