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Finding the Fourth Proportional to 16,053.84, 22,155.16 and 8,979.84

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Solution

The fourth proportional to 16,053.84, 22,155.16 and 8,979.84 is: 12,392.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,053.84 : 22,155.16 = 8,979.84 : x
  2. Step 2: Convert to fraction form
    16,053.84/22,155.16 = 8,979.84/x
  3. Step 3: Cross multiply
    16,053.84x = 22,155.16 × 8,979.84
  4. Step 4: Simplify right side
    16,053.84x = 198,949,791.97
  5. Step 5: Solve for x
    x = 198,949,791.97/16,053.84
  6. Step 6: Final answer
    x = 12,392.66

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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.