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Finding the Fourth Proportional to 2,681.92, 4,023.66 and 950.68

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Solution

The fourth proportional to 2,681.92, 4,023.66 and 950.68 is: 1,426.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.92 : 4,023.66 = 950.68 : x
  2. Step 2: Convert to fraction form
    2,681.92/4,023.66 = 950.68/x
  3. Step 3: Cross multiply
    2,681.92x = 4,023.66 × 950.68
  4. Step 4: Simplify right side
    2,681.92x = 3,825,213.09
  5. Step 5: Solve for x
    x = 3,825,213.09/2,681.92
  6. Step 6: Final answer
    x = 1,426.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.