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Finding the Third Proportional to 699.89 and 1,502.30

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Solution

The third proportional to 699.89 and 1,502.30 is: 3,224.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    699.89 : 1,502.30 = 1,502.30 : x
  2. Step 2: Convert to fraction form
    699.89/1,502.30 = 1,502.30/x
  3. Step 3: Cross multiply
    699.89x = 1,502.30 × 1,502.30
  4. Step 4: Simplify right side
    699.89x = 2,256,895.90
  5. Step 5: Solve for x
    x = 2,256,895.90/699.89
  6. Step 6: Final answer
    x = 3,224.64

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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.