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Finding the Fourth Proportional to 10,787.92, 16,181.88 and 3,393.03

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Solution

The fourth proportional to 10,787.92, 16,181.88 and 3,393.03 is: 5,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.92 : 16,181.88 = 3,393.03 : x
  2. Step 2: Convert to fraction form
    10,787.92/16,181.88 = 3,393.03/x
  3. Step 3: Cross multiply
    10,787.92x = 16,181.88 × 3,393.03
  4. Step 4: Simplify right side
    10,787.92x = 54,905,604.30
  5. Step 5: Solve for x
    x = 54,905,604.30/10,787.92
  6. Step 6: Final answer
    x = 5,089.55

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Similar ratio
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1.5x scale

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.