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Finding the Fourth Proportional to 69,104.04, 95,304.78 and 55,671

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Solution

The fourth proportional to 69,104.04, 95,304.78 and 55,671 is: 76,778.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,104.04 : 95,304.78 = 55,671 : x
  2. Step 2: Convert to fraction form
    69,104.04/95,304.78 = 55,671/x
  3. Step 3: Cross multiply
    69,104.04x = 95,304.78 × 55,671
  4. Step 4: Simplify right side
    69,104.04x = 5,305,712,407.38
  5. Step 5: Solve for x
    x = 5,305,712,407.38/69,104.04
  6. Step 6: Final answer
    x = 76,778.61

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1.5x scale

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.