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Finding the Third Proportional to 1,339.88 and 2,885.06

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Solution

The third proportional to 1,339.88 and 2,885.06 is: 6,212.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339.88 : 2,885.06 = 2,885.06 : x
  2. Step 2: Convert to fraction form
    1,339.88/2,885.06 = 2,885.06/x
  3. Step 3: Cross multiply
    1,339.88x = 2,885.06 × 2,885.06
  4. Step 4: Simplify right side
    1,339.88x = 8,323,585.63
  5. Step 5: Solve for x
    x = 8,323,585.63/1,339.88
  6. Step 6: Final answer
    x = 6,212.21

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.