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Finding the Third Proportional to 7,664.63 and 10,972.13

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Solution

The third proportional to 7,664.63 and 10,972.13 is: 15,706.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.63 : 10,972.13 = 10,972.13 : x
  2. Step 2: Convert to fraction form
    7,664.63/10,972.13 = 10,972.13/x
  3. Step 3: Cross multiply
    7,664.63x = 10,972.13 × 10,972.13
  4. Step 4: Simplify right side
    7,664.63x = 120,387,527.02
  5. Step 5: Solve for x
    x = 120,387,527.02/7,664.63
  6. Step 6: Final answer
    x = 15,706.90

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.