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Finding the Fourth Proportional to 2,250.92, 3,103.20 and 1,551.08

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Solution

The fourth proportional to 2,250.92, 3,103.20 and 1,551.08 is: 2,138.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,250.92 : 3,103.20 = 1,551.08 : x
  2. Step 2: Convert to fraction form
    2,250.92/3,103.20 = 1,551.08/x
  3. Step 3: Cross multiply
    2,250.92x = 3,103.20 × 1,551.08
  4. Step 4: Simplify right side
    2,250.92x = 4,813,311.46
  5. Step 5: Solve for x
    x = 4,813,311.46/2,250.92
  6. Step 6: Final answer
    x = 2,138.38

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.