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Finding the Fourth Proportional to 62,117.28, 93,191.28 and 20,568.48

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Solution

The fourth proportional to 62,117.28, 93,191.28 and 20,568.48 is: 30,857.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,117.28 : 93,191.28 = 20,568.48 : x
  2. Step 2: Convert to fraction form
    62,117.28/93,191.28 = 20,568.48/x
  3. Step 3: Cross multiply
    62,117.28x = 93,191.28 × 20,568.48
  4. Step 4: Simplify right side
    62,117.28x = 1,916,802,978.85
  5. Step 5: Solve for x
    x = 1,916,802,978.85/62,117.28
  6. Step 6: Final answer
    x = 30,857.81

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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.