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Finding the Fourth Proportional to 18,062.60, 27,093.90 and 15,211.40

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Solution

The fourth proportional to 18,062.60, 27,093.90 and 15,211.40 is: 22,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,062.60 : 27,093.90 = 15,211.40 : x
  2. Step 2: Convert to fraction form
    18,062.60/27,093.90 = 15,211.40/x
  3. Step 3: Cross multiply
    18,062.60x = 27,093.90 × 15,211.40
  4. Step 4: Simplify right side
    18,062.60x = 412,136,150.46
  5. Step 5: Solve for x
    x = 412,136,150.46/18,062.60
  6. Step 6: Final answer
    x = 22,817.10

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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.