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Finding the Fourth Proportional to 62,213.70, 93,320.55 and 20,660.70

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Solution

The fourth proportional to 62,213.70, 93,320.55 and 20,660.70 is: 30,991.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,213.70 : 93,320.55 = 20,660.70 : x
  2. Step 2: Convert to fraction form
    62,213.70/93,320.55 = 20,660.70/x
  3. Step 3: Cross multiply
    62,213.70x = 93,320.55 × 20,660.70
  4. Step 4: Simplify right side
    62,213.70x = 1,928,067,887.39
  5. Step 5: Solve for x
    x = 1,928,067,887.39/62,213.70
  6. Step 6: Final answer
    x = 30,991.05

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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.