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Finding the Fourth Proportional to 18,166.80, 27,217.80 and 15,574.80

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Solution

The fourth proportional to 18,166.80, 27,217.80 and 15,574.80 is: 23,334.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,166.80 : 27,217.80 = 15,574.80 : x
  2. Step 2: Convert to fraction form
    18,166.80/27,217.80 = 15,574.80/x
  3. Step 3: Cross multiply
    18,166.80x = 27,217.80 × 15,574.80
  4. Step 4: Simplify right side
    18,166.80x = 423,911,791.44
  5. Step 5: Solve for x
    x = 423,911,791.44/18,166.80
  6. Step 6: Final answer
    x = 23,334.42

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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.