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Finding the Fourth Proportional to 16,436.38, 22,682.20 and 8,984.38

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Solution

The fourth proportional to 16,436.38, 22,682.20 and 8,984.38 is: 12,398.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,436.38 : 22,682.20 = 8,984.38 : x
  2. Step 2: Convert to fraction form
    16,436.38/22,682.20 = 8,984.38/x
  3. Step 3: Cross multiply
    16,436.38x = 22,682.20 × 8,984.38
  4. Step 4: Simplify right side
    16,436.38x = 203,785,368.16
  5. Step 5: Solve for x
    x = 203,785,368.16/16,436.38
  6. Step 6: Final answer
    x = 12,398.44

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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.