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Finding the Fourth Proportional to 12,382.70, 17,088.11 and 6,793.70

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Solution

The fourth proportional to 12,382.70, 17,088.11 and 6,793.70 is: 9,375.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.70 : 17,088.11 = 6,793.70 : x
  2. Step 2: Convert to fraction form
    12,382.70/17,088.11 = 6,793.70/x
  3. Step 3: Cross multiply
    12,382.70x = 17,088.11 × 6,793.70
  4. Step 4: Simplify right side
    12,382.70x = 116,091,373.50
  5. Step 5: Solve for x
    x = 116,091,373.50/12,382.70
  6. Step 6: Final answer
    x = 9,375.29

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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.