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Finding the Fourth Proportional to 45,370.80, 68,059.85 and 15,787.98

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Solution

The fourth proportional to 45,370.80, 68,059.85 and 15,787.98 is: 23,683.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,370.80 : 68,059.85 = 15,787.98 : x
  2. Step 2: Convert to fraction form
    45,370.80/68,059.85 = 15,787.98/x
  3. Step 3: Cross multiply
    45,370.80x = 68,059.85 × 15,787.98
  4. Step 4: Simplify right side
    45,370.80x = 1,074,527,471.66
  5. Step 5: Solve for x
    x = 1,074,527,471.66/45,370.80
  6. Step 6: Final answer
    x = 23,683.24

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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.