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Finding the Third Proportional to 2,489.06 and 3,885.19

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Solution

The third proportional to 2,489.06 and 3,885.19 is: 6,064.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.06 : 3,885.19 = 3,885.19 : x
  2. Step 2: Convert to fraction form
    2,489.06/3,885.19 = 3,885.19/x
  3. Step 3: Cross multiply
    2,489.06x = 3,885.19 × 3,885.19
  4. Step 4: Simplify right side
    2,489.06x = 15,094,681.91
  5. Step 5: Solve for x
    x = 15,094,681.91/2,489.06
  6. Step 6: Final answer
    x = 6,064.40

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.