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Finding the Fourth Proportional to 4,787.31, 7,180.98 and 1,500.49

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Solution

The fourth proportional to 4,787.31, 7,180.98 and 1,500.49 is: 2,250.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.31 : 7,180.98 = 1,500.49 : x
  2. Step 2: Convert to fraction form
    4,787.31/7,180.98 = 1,500.49/x
  3. Step 3: Cross multiply
    4,787.31x = 7,180.98 × 1,500.49
  4. Step 4: Simplify right side
    4,787.31x = 10,774,988.68
  5. Step 5: Solve for x
    x = 10,774,988.68/4,787.31
  6. Step 6: Final answer
    x = 2,250.74

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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.