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Finding the Fourth Proportional to 18,057.70, 27,097.49 and 7,669.45

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Solution

The fourth proportional to 18,057.70, 27,097.49 and 7,669.45 is: 11,508.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,057.70 : 27,097.49 = 7,669.45 : x
  2. Step 2: Convert to fraction form
    18,057.70/27,097.49 = 7,669.45/x
  3. Step 3: Cross multiply
    18,057.70x = 27,097.49 × 7,669.45
  4. Step 4: Simplify right side
    18,057.70x = 207,822,844.68
  5. Step 5: Solve for x
    x = 207,822,844.68/18,057.70
  6. Step 6: Final answer
    x = 11,508.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.