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Finding the Fourth Proportional to 69,220.72, 95,522.52 and 39,007.72

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Solution

The fourth proportional to 69,220.72, 95,522.52 and 39,007.72 is: 53,829.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,220.72 : 95,522.52 = 39,007.72 : x
  2. Step 2: Convert to fraction form
    69,220.72/95,522.52 = 39,007.72/x
  3. Step 3: Cross multiply
    69,220.72x = 95,522.52 × 39,007.72
  4. Step 4: Simplify right side
    69,220.72x = 3,726,115,713.85
  5. Step 5: Solve for x
    x = 3,726,115,713.85/69,220.72
  6. Step 6: Final answer
    x = 53,829.49

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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.