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Finding the Third Proportional to 7,436.25 and 11,565

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Solution

The third proportional to 7,436.25 and 11,565 is: 17,986.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,436.25 : 11,565 = 11,565 : x
  2. Step 2: Convert to fraction form
    7,436.25/11,565 = 11,565/x
  3. Step 3: Cross multiply
    7,436.25x = 11,565 × 11,565
  4. Step 4: Simplify right side
    7,436.25x = 133,749,225
  5. Step 5: Solve for x
    x = 133,749,225/7,436.25
  6. Step 6: Final answer
    x = 17,986.11

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.