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Finding the Fourth Proportional to 2,095.92, 3,142.20 and 1,447.92

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Solution

The fourth proportional to 2,095.92, 3,142.20 and 1,447.92 is: 2,170.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,095.92 : 3,142.20 = 1,447.92 : x
  2. Step 2: Convert to fraction form
    2,095.92/3,142.20 = 1,447.92/x
  3. Step 3: Cross multiply
    2,095.92x = 3,142.20 × 1,447.92
  4. Step 4: Simplify right side
    2,095.92x = 4,549,654.22
  5. Step 5: Solve for x
    x = 4,549,654.22/2,095.92
  6. Step 6: Final answer
    x = 2,170.72

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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.