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Finding the Fourth Proportional to 10,149.98, 15,224.99 and 2,754.45

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Solution

The fourth proportional to 10,149.98, 15,224.99 and 2,754.45 is: 4,131.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,149.98 : 15,224.99 = 2,754.45 : x
  2. Step 2: Convert to fraction form
    10,149.98/15,224.99 = 2,754.45/x
  3. Step 3: Cross multiply
    10,149.98x = 15,224.99 × 2,754.45
  4. Step 4: Simplify right side
    10,149.98x = 41,936,459.93
  5. Step 5: Solve for x
    x = 41,936,459.93/10,149.98
  6. Step 6: Final answer
    x = 4,131.68

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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.