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Finding the Fourth Proportional to 16,051.29, 22,152.87 and 8,979.18

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Solution

The fourth proportional to 16,051.29, 22,152.87 and 8,979.18 is: 12,392.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,051.29 : 22,152.87 = 8,979.18 : x
  2. Step 2: Convert to fraction form
    16,051.29/22,152.87 = 8,979.18/x
  3. Step 3: Cross multiply
    16,051.29x = 22,152.87 × 8,979.18
  4. Step 4: Simplify right side
    16,051.29x = 198,914,607.25
  5. Step 5: Solve for x
    x = 198,914,607.25/16,051.29
  6. Step 6: Final answer
    x = 12,392.44

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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.