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Finding the Fourth Proportional to 8,610.82, 12,916.22 and 2,370.87

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Solution

The fourth proportional to 8,610.82, 12,916.22 and 2,370.87 is: 3,556.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.82 : 12,916.22 = 2,370.87 : x
  2. Step 2: Convert to fraction form
    8,610.82/12,916.22 = 2,370.87/x
  3. Step 3: Cross multiply
    8,610.82x = 12,916.22 × 2,370.87
  4. Step 4: Simplify right side
    8,610.82x = 30,622,666.66
  5. Step 5: Solve for x
    x = 30,622,666.66/8,610.82
  6. Step 6: Final answer
    x = 3,556.30

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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.