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Finding the Fourth Proportional to 14,851.68, 20,494.69 and 8,879.82

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Solution

The fourth proportional to 14,851.68, 20,494.69 and 8,879.82 is: 12,253.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,851.68 : 20,494.69 = 8,879.82 : x
  2. Step 2: Convert to fraction form
    14,851.68/20,494.69 = 8,879.82/x
  3. Step 3: Cross multiply
    14,851.68x = 20,494.69 × 8,879.82
  4. Step 4: Simplify right side
    14,851.68x = 181,989,158.16
  5. Step 5: Solve for x
    x = 181,989,158.16/14,851.68
  6. Step 6: Final answer
    x = 12,253.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.