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Finding the Fourth Proportional to 16,243.13, 22,415.52 and 8,791.13

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Solution

The fourth proportional to 16,243.13, 22,415.52 and 8,791.13 is: 12,131.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,243.13 : 22,415.52 = 8,791.13 : x
  2. Step 2: Convert to fraction form
    16,243.13/22,415.52 = 8,791.13/x
  3. Step 3: Cross multiply
    16,243.13x = 22,415.52 × 8,791.13
  4. Step 4: Simplify right side
    16,243.13x = 197,057,638.26
  5. Step 5: Solve for x
    x = 197,057,638.26/16,243.13
  6. Step 6: Final answer
    x = 12,131.76

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1.5x scale

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.