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Finding the Fourth Proportional to 18,267.60, 27,400.28 and 11,248.95

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Solution

The fourth proportional to 18,267.60, 27,400.28 and 11,248.95 is: 16,872.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,267.60 : 27,400.28 = 11,248.95 : x
  2. Step 2: Convert to fraction form
    18,267.60/27,400.28 = 11,248.95/x
  3. Step 3: Cross multiply
    18,267.60x = 27,400.28 × 11,248.95
  4. Step 4: Simplify right side
    18,267.60x = 308,224,323.46
  5. Step 5: Solve for x
    x = 308,224,323.46/18,267.60
  6. Step 6: Final answer
    x = 16,872.73

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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.