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Finding the Fourth Proportional to 71,657.84, 107,486.62 and 19,067.33

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Solution

The fourth proportional to 71,657.84, 107,486.62 and 19,067.33 is: 28,600.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,657.84 : 107,486.62 = 19,067.33 : x
  2. Step 2: Convert to fraction form
    71,657.84/107,486.62 = 19,067.33/x
  3. Step 3: Cross multiply
    71,657.84x = 107,486.62 × 19,067.33
  4. Step 4: Simplify right side
    71,657.84x = 2,049,482,854.12
  5. Step 5: Solve for x
    x = 2,049,482,854.12/71,657.84
  6. Step 6: Final answer
    x = 28,600.96

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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.