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Finding the Fourth Proportional to 2,366.80, 3,266.22 and 1,318.92

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Solution

The fourth proportional to 2,366.80, 3,266.22 and 1,318.92 is: 1,820.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,366.80 : 3,266.22 = 1,318.92 : x
  2. Step 2: Convert to fraction form
    2,366.80/3,266.22 = 1,318.92/x
  3. Step 3: Cross multiply
    2,366.80x = 3,266.22 × 1,318.92
  4. Step 4: Simplify right side
    2,366.80x = 4,307,882.88
  5. Step 5: Solve for x
    x = 4,307,882.88/2,366.80
  6. Step 6: Final answer
    x = 1,820.13

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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.