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Finding the Fourth Proportional to 43,998.75, 65,996.33 and 15,919.47

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Solution

The fourth proportional to 43,998.75, 65,996.33 and 15,919.47 is: 23,878.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,998.75 : 65,996.33 = 15,919.47 : x
  2. Step 2: Convert to fraction form
    43,998.75/65,996.33 = 15,919.47/x
  3. Step 3: Cross multiply
    43,998.75x = 65,996.33 × 15,919.47
  4. Step 4: Simplify right side
    43,998.75x = 1,050,626,515.95
  5. Step 5: Solve for x
    x = 1,050,626,515.95/43,998.75
  6. Step 6: Final answer
    x = 23,878.55

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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.