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Finding the Fourth Proportional to 22,309.52, 33,282.03 and 20,718.68

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Solution

The fourth proportional to 22,309.52, 33,282.03 and 20,718.68 is: 30,908.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,309.52 : 33,282.03 = 20,718.68 : x
  2. Step 2: Convert to fraction form
    22,309.52/33,282.03 = 20,718.68/x
  3. Step 3: Cross multiply
    22,309.52x = 33,282.03 × 20,718.68
  4. Step 4: Simplify right side
    22,309.52x = 689,559,625.73
  5. Step 5: Solve for x
    x = 689,559,625.73/22,309.52
  6. Step 6: Final answer
    x = 30,908.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.