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Finding the Fourth Proportional to 2,512.86, 3,769.30 and 1,053.04

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Solution

The fourth proportional to 2,512.86, 3,769.30 and 1,053.04 is: 1,579.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,512.86 : 3,769.30 = 1,053.04 : x
  2. Step 2: Convert to fraction form
    2,512.86/3,769.30 = 1,053.04/x
  3. Step 3: Cross multiply
    2,512.86x = 3,769.30 × 1,053.04
  4. Step 4: Simplify right side
    2,512.86x = 3,969,223.67
  5. Step 5: Solve for x
    x = 3,969,223.67/2,512.86
  6. Step 6: Final answer
    x = 1,579.56

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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.