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Finding the Fourth Proportional to 16,203.69, 22,361.00 and 9,132.39

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Solution

The fourth proportional to 16,203.69, 22,361.00 and 9,132.39 is: 12,602.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,203.69 : 22,361.00 = 9,132.39 : x
  2. Step 2: Convert to fraction form
    16,203.69/22,361.00 = 9,132.39/x
  3. Step 3: Cross multiply
    16,203.69x = 22,361.00 × 9,132.39
  4. Step 4: Simplify right side
    16,203.69x = 204,209,327.13
  5. Step 5: Solve for x
    x = 204,209,327.13/16,203.69
  6. Step 6: Final answer
    x = 12,602.64

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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.