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Finding the Third Proportional to 9,708.94 and 14,378.63

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Solution

The third proportional to 9,708.94 and 14,378.63 is: 21,294.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,708.94 : 14,378.63 = 14,378.63 : x
  2. Step 2: Convert to fraction form
    9,708.94/14,378.63 = 14,378.63/x
  3. Step 3: Cross multiply
    9,708.94x = 14,378.63 × 14,378.63
  4. Step 4: Simplify right side
    9,708.94x = 206,744,856.89
  5. Step 5: Solve for x
    x = 206,744,856.89/9,708.94
  6. Step 6: Final answer
    x = 21,294.28

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.