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Finding the Fourth Proportional to 71,998.93, 107,987.46 and 27,646.57

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Solution

The fourth proportional to 71,998.93, 107,987.46 and 27,646.57 is: 41,465.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,998.93 : 107,987.46 = 27,646.57 : x
  2. Step 2: Convert to fraction form
    71,998.93/107,987.46 = 27,646.57/x
  3. Step 3: Cross multiply
    71,998.93x = 107,987.46 × 27,646.57
  4. Step 4: Simplify right side
    71,998.93x = 2,985,482,872.01
  5. Step 5: Solve for x
    x = 2,985,482,872.01/71,998.93
  6. Step 6: Final answer
    x = 41,465.66

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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.