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Finding the Fourth Proportional to 3,973.92, 5,961.92 and 1,508.76

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Solution

The fourth proportional to 3,973.92, 5,961.92 and 1,508.76 is: 2,263.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973.92 : 5,961.92 = 1,508.76 : x
  2. Step 2: Convert to fraction form
    3,973.92/5,961.92 = 1,508.76/x
  3. Step 3: Cross multiply
    3,973.92x = 5,961.92 × 1,508.76
  4. Step 4: Simplify right side
    3,973.92x = 8,995,106.42
  5. Step 5: Solve for x
    x = 8,995,106.42/3,973.92
  6. Step 6: Final answer
    x = 2,263.53

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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.