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Finding the Fourth Proportional to 2,296.91, 3,169.72 and 1,248.97

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Solution

The fourth proportional to 2,296.91, 3,169.72 and 1,248.97 is: 1,723.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,296.91 : 3,169.72 = 1,248.97 : x
  2. Step 2: Convert to fraction form
    2,296.91/3,169.72 = 1,248.97/x
  3. Step 3: Cross multiply
    2,296.91x = 3,169.72 × 1,248.97
  4. Step 4: Simplify right side
    2,296.91x = 3,958,877.74
  5. Step 5: Solve for x
    x = 3,958,877.74/2,296.91
  6. Step 6: Final answer
    x = 1,723.57

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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.