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Finding the Fourth Proportional to 62,345.76, 93,531.78 and 20,222.56

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Solution

The fourth proportional to 62,345.76, 93,531.78 and 20,222.56 is: 30,338.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,345.76 : 93,531.78 = 20,222.56 : x
  2. Step 2: Convert to fraction form
    62,345.76/93,531.78 = 20,222.56/x
  3. Step 3: Cross multiply
    62,345.76x = 93,531.78 × 20,222.56
  4. Step 4: Simplify right side
    62,345.76x = 1,891,452,149.87
  5. Step 5: Solve for x
    x = 1,891,452,149.87/62,345.76
  6. Step 6: Final answer
    x = 30,338.10

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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.