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Finding the Fourth Proportional to 12,956.73, 19,435.09 and 3,599.10

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Solution

The fourth proportional to 12,956.73, 19,435.09 and 3,599.10 is: 5,398.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956.73 : 19,435.09 = 3,599.10 : x
  2. Step 2: Convert to fraction form
    12,956.73/19,435.09 = 3,599.10/x
  3. Step 3: Cross multiply
    12,956.73x = 19,435.09 × 3,599.10
  4. Step 4: Simplify right side
    12,956.73x = 69,948,832.42
  5. Step 5: Solve for x
    x = 69,948,832.42/12,956.73
  6. Step 6: Final answer
    x = 5,398.65

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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.