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Finding the Fourth Proportional to 18,660.12, 27,947.02 and 11,248.24

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Solution

The fourth proportional to 18,660.12, 27,947.02 and 11,248.24 is: 16,846.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.12 : 27,947.02 = 11,248.24 : x
  2. Step 2: Convert to fraction form
    18,660.12/27,947.02 = 11,248.24/x
  3. Step 3: Cross multiply
    18,660.12x = 27,947.02 × 11,248.24
  4. Step 4: Simplify right side
    18,660.12x = 314,354,788.24
  5. Step 5: Solve for x
    x = 314,354,788.24/18,660.12
  6. Step 6: Final answer
    x = 16,846.34

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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.