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Finding the Fourth Proportional to 20,030.76, 30,046.76 and 6,882.95

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Solution

The fourth proportional to 20,030.76, 30,046.76 and 6,882.95 is: 10,324.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.76 : 30,046.76 = 6,882.95 : x
  2. Step 2: Convert to fraction form
    20,030.76/30,046.76 = 6,882.95/x
  3. Step 3: Cross multiply
    20,030.76x = 30,046.76 × 6,882.95
  4. Step 4: Simplify right side
    20,030.76x = 206,810,162.09
  5. Step 5: Solve for x
    x = 206,810,162.09/20,030.76
  6. Step 6: Final answer
    x = 10,324.63

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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.