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Finding the Fourth Proportional to 18,645.28, 27,967.92 and 6,799.94

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Solution

The fourth proportional to 18,645.28, 27,967.92 and 6,799.94 is: 10,199.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.28 : 27,967.92 = 6,799.94 : x
  2. Step 2: Convert to fraction form
    18,645.28/27,967.92 = 6,799.94/x
  3. Step 3: Cross multiply
    18,645.28x = 27,967.92 × 6,799.94
  4. Step 4: Simplify right side
    18,645.28x = 190,180,177.92
  5. Step 5: Solve for x
    x = 190,180,177.92/18,645.28
  6. Step 6: Final answer
    x = 10,199.91

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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.