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Finding the Fourth Proportional to 18,161.40, 27,246.15 and 7,067.10

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Solution

The fourth proportional to 18,161.40, 27,246.15 and 7,067.10 is: 10,602.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.40 : 27,246.15 = 7,067.10 : x
  2. Step 2: Convert to fraction form
    18,161.40/27,246.15 = 7,067.10/x
  3. Step 3: Cross multiply
    18,161.40x = 27,246.15 × 7,067.10
  4. Step 4: Simplify right side
    18,161.40x = 192,551,266.67
  5. Step 5: Solve for x
    x = 192,551,266.67/18,161.40
  6. Step 6: Final answer
    x = 10,602.23

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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.