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Finding the Fourth Proportional to 2,248.56, 3,388.05 and 1,867.05

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Solution

The fourth proportional to 2,248.56, 3,388.05 and 1,867.05 is: 2,813.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,248.56 : 3,388.05 = 1,867.05 : x
  2. Step 2: Convert to fraction form
    2,248.56/3,388.05 = 1,867.05/x
  3. Step 3: Cross multiply
    2,248.56x = 3,388.05 × 1,867.05
  4. Step 4: Simplify right side
    2,248.56x = 6,325,658.75
  5. Step 5: Solve for x
    x = 6,325,658.75/2,248.56
  6. Step 6: Final answer
    x = 2,813.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.