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Finding the Fourth Proportional to 62,853.92, 94,293.87 and 20,736.57

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Solution

The fourth proportional to 62,853.92, 94,293.87 and 20,736.57 is: 31,109.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,853.92 : 94,293.87 = 20,736.57 : x
  2. Step 2: Convert to fraction form
    62,853.92/94,293.87 = 20,736.57/x
  3. Step 3: Cross multiply
    62,853.92x = 94,293.87 × 20,736.57
  4. Step 4: Simplify right side
    62,853.92x = 1,955,331,828.31
  5. Step 5: Solve for x
    x = 1,955,331,828.31/62,853.92
  6. Step 6: Final answer
    x = 31,109.14

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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.