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Finding the Fourth Proportional to 2,363.92, 3,262.24 and 1,287.23

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Solution

The fourth proportional to 2,363.92, 3,262.24 and 1,287.23 is: 1,776.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,363.92 : 3,262.24 = 1,287.23 : x
  2. Step 2: Convert to fraction form
    2,363.92/3,262.24 = 1,287.23/x
  3. Step 3: Cross multiply
    2,363.92x = 3,262.24 × 1,287.23
  4. Step 4: Simplify right side
    2,363.92x = 4,199,253.20
  5. Step 5: Solve for x
    x = 4,199,253.20/2,363.92
  6. Step 6: Final answer
    x = 1,776.39

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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.