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Finding the Fourth Proportional to 69,294.75, 95,620.16 and 39,084.78

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Solution

The fourth proportional to 69,294.75, 95,620.16 and 39,084.78 is: 53,933.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,294.75 : 95,620.16 = 39,084.78 : x
  2. Step 2: Convert to fraction form
    69,294.75/95,620.16 = 39,084.78/x
  3. Step 3: Cross multiply
    69,294.75x = 95,620.16 × 39,084.78
  4. Step 4: Simplify right side
    69,294.75x = 3,737,293,373.45
  5. Step 5: Solve for x
    x = 3,737,293,373.45/69,294.75
  6. Step 6: Final answer
    x = 53,933.29

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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.