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Finding the Fourth Proportional to 7,449.84, 11,173.55 and 2,254.50

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Solution

The fourth proportional to 7,449.84, 11,173.55 and 2,254.50 is: 3,381.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449.84 : 11,173.55 = 2,254.50 : x
  2. Step 2: Convert to fraction form
    7,449.84/11,173.55 = 2,254.50/x
  3. Step 3: Cross multiply
    7,449.84x = 11,173.55 × 2,254.50
  4. Step 4: Simplify right side
    7,449.84x = 25,190,757.20
  5. Step 5: Solve for x
    x = 25,190,757.20/7,449.84
  6. Step 6: Final answer
    x = 3,381.38

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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.