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Finding the Third Proportional to 7,901.50 and 11,560

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Solution

The third proportional to 7,901.50 and 11,560 is: 16,912.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,901.50 : 11,560 = 11,560 : x
  2. Step 2: Convert to fraction form
    7,901.50/11,560 = 11,560/x
  3. Step 3: Cross multiply
    7,901.50x = 11,560 × 11,560
  4. Step 4: Simplify right side
    7,901.50x = 133,633,600
  5. Step 5: Solve for x
    x = 133,633,600/7,901.50
  6. Step 6: Final answer
    x = 16,912.43

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.