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Finding the Fourth Proportional to 20,065.91, 30,098.93 and 5,273.57

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Solution

The fourth proportional to 20,065.91, 30,098.93 and 5,273.57 is: 7,910.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.91 : 30,098.93 = 5,273.57 : x
  2. Step 2: Convert to fraction form
    20,065.91/30,098.93 = 5,273.57/x
  3. Step 3: Cross multiply
    20,065.91x = 30,098.93 × 5,273.57
  4. Step 4: Simplify right side
    20,065.91x = 158,728,863.16
  5. Step 5: Solve for x
    x = 158,728,863.16/20,065.91
  6. Step 6: Final answer
    x = 7,910.38

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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.