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Finding the Third Proportional to 3,938.63 and 5,990.44

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Solution

The third proportional to 3,938.63 and 5,990.44 is: 9,111.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.63 : 5,990.44 = 5,990.44 : x
  2. Step 2: Convert to fraction form
    3,938.63/5,990.44 = 5,990.44/x
  3. Step 3: Cross multiply
    3,938.63x = 5,990.44 × 5,990.44
  4. Step 4: Simplify right side
    3,938.63x = 35,885,341.44
  5. Step 5: Solve for x
    x = 35,885,341.44/3,938.63
  6. Step 6: Final answer
    x = 9,111.13

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.