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Finding the Fourth Proportional to 2,516.47, 3,775.04 and 873.15

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Solution

The fourth proportional to 2,516.47, 3,775.04 and 873.15 is: 1,309.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,516.47 : 3,775.04 = 873.15 : x
  2. Step 2: Convert to fraction form
    2,516.47/3,775.04 = 873.15/x
  3. Step 3: Cross multiply
    2,516.47x = 3,775.04 × 873.15
  4. Step 4: Simplify right side
    2,516.47x = 3,296,160.93
  5. Step 5: Solve for x
    x = 3,296,160.93/2,516.47
  6. Step 6: Final answer
    x = 1,309.84

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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.