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Finding the Fourth Proportional to 71,426.80, 107,067.30 and 41,829.40

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Solution

The fourth proportional to 71,426.80, 107,067.30 and 41,829.40 is: 62,701.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,426.80 : 107,067.30 = 41,829.40 : x
  2. Step 2: Convert to fraction form
    71,426.80/107,067.30 = 41,829.40/x
  3. Step 3: Cross multiply
    71,426.80x = 107,067.30 × 41,829.40
  4. Step 4: Simplify right side
    71,426.80x = 4,478,560,918.62
  5. Step 5: Solve for x
    x = 4,478,560,918.62/71,426.80
  6. Step 6: Final answer
    x = 62,701.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.