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Finding the Fourth Proportional to 16,493.68, 22,764 and 9,422.32

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Solution

The fourth proportional to 16,493.68, 22,764 and 9,422.32 is: 13,004.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,493.68 : 22,764 = 9,422.32 : x
  2. Step 2: Convert to fraction form
    16,493.68/22,764 = 9,422.32/x
  3. Step 3: Cross multiply
    16,493.68x = 22,764 × 9,422.32
  4. Step 4: Simplify right side
    16,493.68x = 214,489,692.48
  5. Step 5: Solve for x
    x = 214,489,692.48/16,493.68
  6. Step 6: Final answer
    x = 13,004.36

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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.