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Finding the Fourth Proportional to 62,693.66, 93,974.34 and 20,562.72

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Solution

The fourth proportional to 62,693.66, 93,974.34 and 20,562.72 is: 30,822.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,693.66 : 93,974.34 = 20,562.72 : x
  2. Step 2: Convert to fraction form
    62,693.66/93,974.34 = 20,562.72/x
  3. Step 3: Cross multiply
    62,693.66x = 93,974.34 × 20,562.72
  4. Step 4: Simplify right side
    62,693.66x = 1,932,368,040.60
  5. Step 5: Solve for x
    x = 1,932,368,040.60/62,693.66
  6. Step 6: Final answer
    x = 30,822.38

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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.