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Finding the Fourth Proportional to 12,097.18, 16,691.96 and 7,382.98

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Solution

The fourth proportional to 12,097.18, 16,691.96 and 7,382.98 is: 10,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097.18 : 16,691.96 = 7,382.98 : x
  2. Step 2: Convert to fraction form
    12,097.18/16,691.96 = 7,382.98/x
  3. Step 3: Cross multiply
    12,097.18x = 16,691.96 × 7,382.98
  4. Step 4: Simplify right side
    12,097.18x = 123,236,406.84
  5. Step 5: Solve for x
    x = 123,236,406.84/12,097.18
  6. Step 6: Final answer
    x = 10,187.20

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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.