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Finding the Fourth Proportional to 2,600.52, 3,900.24 and 956.64

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Solution

The fourth proportional to 2,600.52, 3,900.24 and 956.64 is: 1,434.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600.52 : 3,900.24 = 956.64 : x
  2. Step 2: Convert to fraction form
    2,600.52/3,900.24 = 956.64/x
  3. Step 3: Cross multiply
    2,600.52x = 3,900.24 × 956.64
  4. Step 4: Simplify right side
    2,600.52x = 3,731,125.59
  5. Step 5: Solve for x
    x = 3,731,125.59/2,600.52
  6. Step 6: Final answer
    x = 1,434.76

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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.