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Finding the Fourth Proportional to 4,787.82, 7,181.73 and 1,500.99

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Solution

The fourth proportional to 4,787.82, 7,181.73 and 1,500.99 is: 2,251.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.82 : 7,181.73 = 1,500.99 : x
  2. Step 2: Convert to fraction form
    4,787.82/7,181.73 = 1,500.99/x
  3. Step 3: Cross multiply
    4,787.82x = 7,181.73 × 1,500.99
  4. Step 4: Simplify right side
    4,787.82x = 10,779,704.91
  5. Step 5: Solve for x
    x = 10,779,704.91/4,787.82
  6. Step 6: Final answer
    x = 2,251.49

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Double scale
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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.