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Finding the Fourth Proportional to 2,531.32, 3,797.12 and 992.68

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Solution

The fourth proportional to 2,531.32, 3,797.12 and 992.68 is: 1,489.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,531.32 : 3,797.12 = 992.68 : x
  2. Step 2: Convert to fraction form
    2,531.32/3,797.12 = 992.68/x
  3. Step 3: Cross multiply
    2,531.32x = 3,797.12 × 992.68
  4. Step 4: Simplify right side
    2,531.32x = 3,769,325.08
  5. Step 5: Solve for x
    x = 3,769,325.08/2,531.32
  6. Step 6: Final answer
    x = 1,489.07

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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.