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Finding the Third Proportional to 2,196.75 and 2,430.75

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Solution

The third proportional to 2,196.75 and 2,430.75 is: 2,689.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,196.75 : 2,430.75 = 2,430.75 : x
  2. Step 2: Convert to fraction form
    2,196.75/2,430.75 = 2,430.75/x
  3. Step 3: Cross multiply
    2,196.75x = 2,430.75 × 2,430.75
  4. Step 4: Simplify right side
    2,196.75x = 5,908,545.56
  5. Step 5: Solve for x
    x = 5,908,545.56/2,196.75
  6. Step 6: Final answer
    x = 2,689.68

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.