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Finding the Fourth Proportional to 71,301.51, 98,396.82 and 39,469.73

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Solution

The fourth proportional to 71,301.51, 98,396.82 and 39,469.73 is: 54,468.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,301.51 : 98,396.82 = 39,469.73 : x
  2. Step 2: Convert to fraction form
    71,301.51/98,396.82 = 39,469.73/x
  3. Step 3: Cross multiply
    71,301.51x = 98,396.82 × 39,469.73
  4. Step 4: Simplify right side
    71,301.51x = 3,883,695,573.59
  5. Step 5: Solve for x
    x = 3,883,695,573.59/71,301.51
  6. Step 6: Final answer
    x = 54,468.63

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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.