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Finding the Fourth Proportional to 18,065.68, 27,092.88 and 10,668.16

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Solution

The fourth proportional to 18,065.68, 27,092.88 and 10,668.16 is: 15,998.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,065.68 : 27,092.88 = 10,668.16 : x
  2. Step 2: Convert to fraction form
    18,065.68/27,092.88 = 10,668.16/x
  3. Step 3: Cross multiply
    18,065.68x = 27,092.88 × 10,668.16
  4. Step 4: Simplify right side
    18,065.68x = 289,031,178.70
  5. Step 5: Solve for x
    x = 289,031,178.70/18,065.68
  6. Step 6: Final answer
    x = 15,998.91

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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.