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Finding the Fourth Proportional to 12,101.15, 18,147.06 and 4,704.62

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Solution

The fourth proportional to 12,101.15, 18,147.06 and 4,704.62 is: 7,055.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101.15 : 18,147.06 = 4,704.62 : x
  2. Step 2: Convert to fraction form
    12,101.15/18,147.06 = 4,704.62/x
  3. Step 3: Cross multiply
    12,101.15x = 18,147.06 × 4,704.62
  4. Step 4: Simplify right side
    12,101.15x = 85,375,021.42
  5. Step 5: Solve for x
    x = 85,375,021.42/12,101.15
  6. Step 6: Final answer
    x = 7,055.12

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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.