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Finding the Fourth Proportional to 62,766.34, 86,621.79 and 34,472.32

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Solution

The fourth proportional to 62,766.34, 86,621.79 and 34,472.32 is: 47,574.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,766.34 : 86,621.79 = 34,472.32 : x
  2. Step 2: Convert to fraction form
    62,766.34/86,621.79 = 34,472.32/x
  3. Step 3: Cross multiply
    62,766.34x = 86,621.79 × 34,472.32
  4. Step 4: Simplify right side
    62,766.34x = 2,986,054,063.85
  5. Step 5: Solve for x
    x = 2,986,054,063.85/62,766.34
  6. Step 6: Final answer
    x = 47,574.13

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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.