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Finding the Fourth Proportional to 57,960.48, 79,947.36 and 45,363.36

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Solution

The fourth proportional to 57,960.48, 79,947.36 and 45,363.36 is: 62,571.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,960.48 : 79,947.36 = 45,363.36 : x
  2. Step 2: Convert to fraction form
    57,960.48/79,947.36 = 45,363.36/x
  3. Step 3: Cross multiply
    57,960.48x = 79,947.36 × 45,363.36
  4. Step 4: Simplify right side
    57,960.48x = 3,626,680,872.73
  5. Step 5: Solve for x
    x = 3,626,680,872.73/57,960.48
  6. Step 6: Final answer
    x = 62,571.62

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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.