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Finding the Fourth Proportional to 62,974.42, 86,908.79 and 34,680.11

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Solution

The fourth proportional to 62,974.42, 86,908.79 and 34,680.11 is: 47,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,974.42 : 86,908.79 = 34,680.11 : x
  2. Step 2: Convert to fraction form
    62,974.42/86,908.79 = 34,680.11/x
  3. Step 3: Cross multiply
    62,974.42x = 86,908.79 × 34,680.11
  4. Step 4: Simplify right side
    62,974.42x = 3,014,006,049.32
  5. Step 5: Solve for x
    x = 3,014,006,049.32/62,974.42
  6. Step 6: Final answer
    x = 47,860.80

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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.