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Finding the Third Proportional to 7,161 and 13,588.50

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Solution

The third proportional to 7,161 and 13,588.50 is: 25,785.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161 : 13,588.50 = 13,588.50 : x
  2. Step 2: Convert to fraction form
    7,161/13,588.50 = 13,588.50/x
  3. Step 3: Cross multiply
    7,161x = 13,588.50 × 13,588.50
  4. Step 4: Simplify right side
    7,161x = 184,647,332.25
  5. Step 5: Solve for x
    x = 184,647,332.25/7,161
  6. Step 6: Final answer
    x = 25,785.13

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.