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Finding the Fourth Proportional to 62,921.46, 86,830.92 and 35,702.54

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Solution

The fourth proportional to 62,921.46, 86,830.92 and 35,702.54 is: 49,269.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,921.46 : 86,830.92 = 35,702.54 : x
  2. Step 2: Convert to fraction form
    62,921.46/86,830.92 = 35,702.54/x
  3. Step 3: Cross multiply
    62,921.46x = 86,830.92 × 35,702.54
  4. Step 4: Simplify right side
    62,921.46x = 3,100,084,394.54
  5. Step 5: Solve for x
    x = 3,100,084,394.54/62,921.46
  6. Step 6: Final answer
    x = 49,269.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.