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Finding the Third Proportional to 3,326.48 and 4,990.22

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Solution

The third proportional to 3,326.48 and 4,990.22 is: 7,486.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.48 : 4,990.22 = 4,990.22 : x
  2. Step 2: Convert to fraction form
    3,326.48/4,990.22 = 4,990.22/x
  3. Step 3: Cross multiply
    3,326.48x = 4,990.22 × 4,990.22
  4. Step 4: Simplify right side
    3,326.48x = 24,902,283.17
  5. Step 5: Solve for x
    x = 24,902,283.17/3,326.48
  6. Step 6: Final answer
    x = 7,486.07

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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.