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Finding the Fourth Proportional to 18,366.40, 27,560.40 and 6,680.80

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Solution

The fourth proportional to 18,366.40, 27,560.40 and 6,680.80 is: 10,025.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,366.40 : 27,560.40 = 6,680.80 : x
  2. Step 2: Convert to fraction form
    18,366.40/27,560.40 = 6,680.80/x
  3. Step 3: Cross multiply
    18,366.40x = 27,560.40 × 6,680.80
  4. Step 4: Simplify right side
    18,366.40x = 184,125,520.32
  5. Step 5: Solve for x
    x = 184,125,520.32/18,366.40
  6. Step 6: Final answer
    x = 10,025.13

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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.