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Finding the Fourth Proportional to 15,807.22, 23,691.12 and 8,791

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Solution

The fourth proportional to 15,807.22, 23,691.12 and 8,791 is: 13,175.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,807.22 : 23,691.12 = 8,791 : x
  2. Step 2: Convert to fraction form
    15,807.22/23,691.12 = 8,791/x
  3. Step 3: Cross multiply
    15,807.22x = 23,691.12 × 8,791
  4. Step 4: Simplify right side
    15,807.22x = 208,268,635.92
  5. Step 5: Solve for x
    x = 208,268,635.92/15,807.22
  6. Step 6: Final answer
    x = 13,175.54

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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.