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Finding the Third Proportional to 709.88 and 1,551.75

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Solution

The third proportional to 709.88 and 1,551.75 is: 3,392.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    709.88 : 1,551.75 = 1,551.75 : x
  2. Step 2: Convert to fraction form
    709.88/1,551.75 = 1,551.75/x
  3. Step 3: Cross multiply
    709.88x = 1,551.75 × 1,551.75
  4. Step 4: Simplify right side
    709.88x = 2,407,928.06
  5. Step 5: Solve for x
    x = 2,407,928.06/709.88
  6. Step 6: Final answer
    x = 3,392.05

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.