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Finding the Fourth Proportional to 19,162.30, 28,736.28 and 6,679.12

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Solution

The fourth proportional to 19,162.30, 28,736.28 and 6,679.12 is: 10,016.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,162.30 : 28,736.28 = 6,679.12 : x
  2. Step 2: Convert to fraction form
    19,162.30/28,736.28 = 6,679.12/x
  3. Step 3: Cross multiply
    19,162.30x = 28,736.28 × 6,679.12
  4. Step 4: Simplify right side
    19,162.30x = 191,933,062.47
  5. Step 5: Solve for x
    x = 191,933,062.47/19,162.30
  6. Step 6: Final answer
    x = 10,016.18

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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.