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Finding the Fourth Proportional to 12,047.79, 18,067.22 and 4,148.10

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Solution

The fourth proportional to 12,047.79, 18,067.22 and 4,148.10 is: 6,220.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,047.79 : 18,067.22 = 4,148.10 : x
  2. Step 2: Convert to fraction form
    12,047.79/18,067.22 = 4,148.10/x
  3. Step 3: Cross multiply
    12,047.79x = 18,067.22 × 4,148.10
  4. Step 4: Simplify right side
    12,047.79x = 74,944,614.54
  5. Step 5: Solve for x
    x = 74,944,614.54/12,047.79
  6. Step 6: Final answer
    x = 6,220.61

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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.