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Finding the Third Proportional to 6,931 and 10,393.50

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Solution

The third proportional to 6,931 and 10,393.50 is: 15,585.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931 : 10,393.50 = 10,393.50 : x
  2. Step 2: Convert to fraction form
    6,931/10,393.50 = 10,393.50/x
  3. Step 3: Cross multiply
    6,931x = 10,393.50 × 10,393.50
  4. Step 4: Simplify right side
    6,931x = 108,024,842.25
  5. Step 5: Solve for x
    x = 108,024,842.25/6,931
  6. Step 6: Final answer
    x = 15,585.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.