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Finding the Fourth Proportional to 3,449.92, 5,173.80 and 1,258.24

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Solution

The fourth proportional to 3,449.92, 5,173.80 and 1,258.24 is: 1,886.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.92 : 5,173.80 = 1,258.24 : x
  2. Step 2: Convert to fraction form
    3,449.92/5,173.80 = 1,258.24/x
  3. Step 3: Cross multiply
    3,449.92x = 5,173.80 × 1,258.24
  4. Step 4: Simplify right side
    3,449.92x = 6,509,882.11
  5. Step 5: Solve for x
    x = 6,509,882.11/3,449.92
  6. Step 6: Final answer
    x = 1,886.97

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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.