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Finding the Third Proportional to 4,038.75 and 8,448.75

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Solution

The third proportional to 4,038.75 and 8,448.75 is: 17,674.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,038.75 : 8,448.75 = 8,448.75 : x
  2. Step 2: Convert to fraction form
    4,038.75/8,448.75 = 8,448.75/x
  3. Step 3: Cross multiply
    4,038.75x = 8,448.75 × 8,448.75
  4. Step 4: Simplify right side
    4,038.75x = 71,381,376.56
  5. Step 5: Solve for x
    x = 71,381,376.56/4,038.75
  6. Step 6: Final answer
    x = 17,674.13

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.