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Finding the Fourth Proportional to 12,227.70, 16,882.65 and 9,041.70

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Solution

The fourth proportional to 12,227.70, 16,882.65 and 9,041.70 is: 12,483.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,227.70 : 16,882.65 = 9,041.70 : x
  2. Step 2: Convert to fraction form
    12,227.70/16,882.65 = 9,041.70/x
  3. Step 3: Cross multiply
    12,227.70x = 16,882.65 × 9,041.70
  4. Step 4: Simplify right side
    12,227.70x = 152,647,856.51
  5. Step 5: Solve for x
    x = 152,647,856.51/12,227.70
  6. Step 6: Final answer
    x = 12,483.78

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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.