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Finding the Fourth Proportional to 69,480.04, 95,895.38 and 39,672.04

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Solution

The fourth proportional to 69,480.04, 95,895.38 and 39,672.04 is: 54,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,480.04 : 95,895.38 = 39,672.04 : x
  2. Step 2: Convert to fraction form
    69,480.04/95,895.38 = 39,672.04/x
  3. Step 3: Cross multiply
    69,480.04x = 95,895.38 × 39,672.04
  4. Step 4: Simplify right side
    69,480.04x = 3,804,365,351.18
  5. Step 5: Solve for x
    x = 3,804,365,351.18/69,480.04
  6. Step 6: Final answer
    x = 54,754.80

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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.