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Finding the Third Proportional to 6,500 and 15,578

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Solution

The third proportional to 6,500 and 15,578 is: 37,334.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,500 : 15,578 = 15,578 : x
  2. Step 2: Convert to fraction form
    6,500/15,578 = 15,578/x
  3. Step 3: Cross multiply
    6,500x = 15,578 × 15,578
  4. Step 4: Simplify right side
    6,500x = 242,674,084
  5. Step 5: Solve for x
    x = 242,674,084/6,500
  6. Step 6: Final answer
    x = 37,334.47

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Why These Related Problems?

These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.