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Finding the Fourth Proportional to 62,481.70, 93,722.55 and 20,928.70

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Solution

The fourth proportional to 62,481.70, 93,722.55 and 20,928.70 is: 31,393.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,481.70 : 93,722.55 = 20,928.70 : x
  2. Step 2: Convert to fraction form
    62,481.70/93,722.55 = 20,928.70/x
  3. Step 3: Cross multiply
    62,481.70x = 93,722.55 × 20,928.70
  4. Step 4: Simplify right side
    62,481.70x = 1,961,491,132.19
  5. Step 5: Solve for x
    x = 1,961,491,132.19/62,481.70
  6. Step 6: Final answer
    x = 31,393.05

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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.