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Finding the Fourth Proportional to 69,506.82, 95,920.86 and 39,290.34

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Solution

The fourth proportional to 69,506.82, 95,920.86 and 39,290.34 is: 54,221.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,506.82 : 95,920.86 = 39,290.34 : x
  2. Step 2: Convert to fraction form
    69,506.82/95,920.86 = 39,290.34/x
  3. Step 3: Cross multiply
    69,506.82x = 95,920.86 × 39,290.34
  4. Step 4: Simplify right side
    69,506.82x = 3,768,763,202.49
  5. Step 5: Solve for x
    x = 3,768,763,202.49/69,506.82
  6. Step 6: Final answer
    x = 54,221.49

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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.