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Finding the Fourth Proportional to 7,241.31, 9,993.16 and 4,097.49

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Solution

The fourth proportional to 7,241.31, 9,993.16 and 4,097.49 is: 5,654.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,241.31 : 9,993.16 = 4,097.49 : x
  2. Step 2: Convert to fraction form
    7,241.31/9,993.16 = 4,097.49/x
  3. Step 3: Cross multiply
    7,241.31x = 9,993.16 × 4,097.49
  4. Step 4: Simplify right side
    7,241.31x = 40,946,877.66
  5. Step 5: Solve for x
    x = 40,946,877.66/7,241.31
  6. Step 6: Final answer
    x = 5,654.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.