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Finding the Fourth Proportional to 16,533, 22,815.60 and 9,081

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Solution

The fourth proportional to 16,533, 22,815.60 and 9,081 is: 12,531.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,533 : 22,815.60 = 9,081 : x
  2. Step 2: Convert to fraction form
    16,533/22,815.60 = 9,081/x
  3. Step 3: Cross multiply
    16,533x = 22,815.60 × 9,081
  4. Step 4: Simplify right side
    16,533x = 207,188,463.60
  5. Step 5: Solve for x
    x = 207,188,463.60/16,533
  6. Step 6: Final answer
    x = 12,531.81

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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.