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Finding the Fourth Proportional to 2,162.52, 2,984.54 and 1,279.08

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Solution

The fourth proportional to 2,162.52, 2,984.54 and 1,279.08 is: 1,765.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162.52 : 2,984.54 = 1,279.08 : x
  2. Step 2: Convert to fraction form
    2,162.52/2,984.54 = 1,279.08/x
  3. Step 3: Cross multiply
    2,162.52x = 2,984.54 × 1,279.08
  4. Step 4: Simplify right side
    2,162.52x = 3,817,465.42
  5. Step 5: Solve for x
    x = 3,817,465.42/2,162.52
  6. Step 6: Final answer
    x = 1,765.29

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.