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Finding the Fourth Proportional to 62,250, 93,375.81 and 20,697

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Solution

The fourth proportional to 62,250, 93,375.81 and 20,697 is: 31,045.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,250 : 93,375.81 = 20,697 : x
  2. Step 2: Convert to fraction form
    62,250/93,375.81 = 20,697/x
  3. Step 3: Cross multiply
    62,250x = 93,375.81 × 20,697
  4. Step 4: Simplify right side
    62,250x = 1,932,599,139.57
  5. Step 5: Solve for x
    x = 1,932,599,139.57/62,250
  6. Step 6: Final answer
    x = 31,045.77

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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.