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Finding the Fourth Proportional to 18,556.30, 27,834.45 and 15,057.10

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Solution

The fourth proportional to 18,556.30, 27,834.45 and 15,057.10 is: 22,585.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,556.30 : 27,834.45 = 15,057.10 : x
  2. Step 2: Convert to fraction form
    18,556.30/27,834.45 = 15,057.10/x
  3. Step 3: Cross multiply
    18,556.30x = 27,834.45 × 15,057.10
  4. Step 4: Simplify right side
    18,556.30x = 419,106,097.10
  5. Step 5: Solve for x
    x = 419,106,097.10/18,556.30
  6. Step 6: Final answer
    x = 22,585.65

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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.