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Finding the Fourth Proportional to 62,409.80, 86,125.41 and 34,115.49

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Solution

The fourth proportional to 62,409.80, 86,125.41 and 34,115.49 is: 47,079.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,409.80 : 86,125.41 = 34,115.49 : x
  2. Step 2: Convert to fraction form
    62,409.80/86,125.41 = 34,115.49/x
  3. Step 3: Cross multiply
    62,409.80x = 86,125.41 × 34,115.49
  4. Step 4: Simplify right side
    62,409.80x = 2,938,210,563.60
  5. Step 5: Solve for x
    x = 2,938,210,563.60/62,409.80
  6. Step 6: Final answer
    x = 47,079.31

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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.