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Finding the Third Proportional to 7,617 and 11,506.50

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Solution

The third proportional to 7,617 and 11,506.50 is: 17,382.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,617 : 11,506.50 = 11,506.50 : x
  2. Step 2: Convert to fraction form
    7,617/11,506.50 = 11,506.50/x
  3. Step 3: Cross multiply
    7,617x = 11,506.50 × 11,506.50
  4. Step 4: Simplify right side
    7,617x = 132,399,542.25
  5. Step 5: Solve for x
    x = 132,399,542.25/7,617
  6. Step 6: Final answer
    x = 17,382.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.