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Finding the Fourth Proportional to 18,093.60, 27,140.40 and 14,375.70

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Solution

The fourth proportional to 18,093.60, 27,140.40 and 14,375.70 is: 21,563.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,093.60 : 27,140.40 = 14,375.70 : x
  2. Step 2: Convert to fraction form
    18,093.60/27,140.40 = 14,375.70/x
  3. Step 3: Cross multiply
    18,093.60x = 27,140.40 × 14,375.70
  4. Step 4: Simplify right side
    18,093.60x = 390,162,248.28
  5. Step 5: Solve for x
    x = 390,162,248.28/18,093.60
  6. Step 6: Final answer
    x = 21,563.55

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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.