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Finding the Fourth Proportional to 62,984.76, 86,918.98 and 34,690.44

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Solution

The fourth proportional to 62,984.76, 86,918.98 and 34,690.44 is: 47,872.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,984.76 : 86,918.98 = 34,690.44 : x
  2. Step 2: Convert to fraction form
    62,984.76/86,918.98 = 34,690.44/x
  3. Step 3: Cross multiply
    62,984.76x = 86,918.98 × 34,690.44
  4. Step 4: Simplify right side
    62,984.76x = 3,015,257,660.55
  5. Step 5: Solve for x
    x = 3,015,257,660.55/62,984.76
  6. Step 6: Final answer
    x = 47,872.81

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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.