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Finding the Fourth Proportional to 2,095.16, 2,891.12 and 1,255.70

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Solution

The fourth proportional to 2,095.16, 2,891.12 and 1,255.70 is: 1,732.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,095.16 : 2,891.12 = 1,255.70 : x
  2. Step 2: Convert to fraction form
    2,095.16/2,891.12 = 1,255.70/x
  3. Step 3: Cross multiply
    2,095.16x = 2,891.12 × 1,255.70
  4. Step 4: Simplify right side
    2,095.16x = 3,630,380.33
  5. Step 5: Solve for x
    x = 3,630,380.33/2,095.16
  6. Step 6: Final answer
    x = 1,732.75

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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.