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Finding the Fourth Proportional to 45,871.66, 68,787.03 and 15,888.70

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Solution

The fourth proportional to 45,871.66, 68,787.03 and 15,888.70 is: 23,825.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,871.66 : 68,787.03 = 15,888.70 : x
  2. Step 2: Convert to fraction form
    45,871.66/68,787.03 = 15,888.70/x
  3. Step 3: Cross multiply
    45,871.66x = 68,787.03 × 15,888.70
  4. Step 4: Simplify right side
    45,871.66x = 1,092,936,483.56
  5. Step 5: Solve for x
    x = 1,092,936,483.56/45,871.66
  6. Step 6: Final answer
    x = 23,825.96

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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.