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Finding the Fourth Proportional to 69,063.80, 95,307.52 and 39,255.80

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Solution

The fourth proportional to 69,063.80, 95,307.52 and 39,255.80 is: 54,172.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,063.80 : 95,307.52 = 39,255.80 : x
  2. Step 2: Convert to fraction form
    69,063.80/95,307.52 = 39,255.80/x
  3. Step 3: Cross multiply
    69,063.80x = 95,307.52 × 39,255.80
  4. Step 4: Simplify right side
    69,063.80x = 3,741,372,943.62
  5. Step 5: Solve for x
    x = 3,741,372,943.62/69,063.80
  6. Step 6: Final answer
    x = 54,172.71

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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.