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Finding the Fourth Proportional to 1,736.96, 2,600.76 and 913.52

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Solution

The fourth proportional to 1,736.96, 2,600.76 and 913.52 is: 1,367.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,736.96 : 2,600.76 = 913.52 : x
  2. Step 2: Convert to fraction form
    1,736.96/2,600.76 = 913.52/x
  3. Step 3: Cross multiply
    1,736.96x = 2,600.76 × 913.52
  4. Step 4: Simplify right side
    1,736.96x = 2,375,846.28
  5. Step 5: Solve for x
    x = 2,375,846.28/1,736.96
  6. Step 6: Final answer
    x = 1,367.82

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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.