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Finding the Fourth Proportional to 62,278.70, 93,418.01 and 20,725.70

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Solution

The fourth proportional to 62,278.70, 93,418.01 and 20,725.70 is: 31,088.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,278.70 : 93,418.01 = 20,725.70 : x
  2. Step 2: Convert to fraction form
    62,278.70/93,418.01 = 20,725.70/x
  3. Step 3: Cross multiply
    62,278.70x = 93,418.01 × 20,725.70
  4. Step 4: Simplify right side
    62,278.70x = 1,936,153,546.23
  5. Step 5: Solve for x
    x = 1,936,153,546.23/62,278.70
  6. Step 6: Final answer
    x = 31,088.54

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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.