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Finding the Fourth Proportional to 18,627.76, 25,705.02 and 11,073.70

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Solution

The fourth proportional to 18,627.76, 25,705.02 and 11,073.70 is: 15,280.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,627.76 : 25,705.02 = 11,073.70 : x
  2. Step 2: Convert to fraction form
    18,627.76/25,705.02 = 11,073.70/x
  3. Step 3: Cross multiply
    18,627.76x = 25,705.02 × 11,073.70
  4. Step 4: Simplify right side
    18,627.76x = 284,649,679.97
  5. Step 5: Solve for x
    x = 284,649,679.97/18,627.76
  6. Step 6: Final answer
    x = 15,280.94

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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.