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Finding the Third Proportional to 2,215.13 and 4,659.75

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Solution

The third proportional to 2,215.13 and 4,659.75 is: 9,802.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.13 : 4,659.75 = 4,659.75 : x
  2. Step 2: Convert to fraction form
    2,215.13/4,659.75 = 4,659.75/x
  3. Step 3: Cross multiply
    2,215.13x = 4,659.75 × 4,659.75
  4. Step 4: Simplify right side
    2,215.13x = 21,713,270.06
  5. Step 5: Solve for x
    x = 21,713,270.06/2,215.13
  6. Step 6: Final answer
    x = 9,802.28

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.