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Finding the Third Proportional to 4,786 and 7,396.50

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Solution

The third proportional to 4,786 and 7,396.50 is: 11,430.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786 : 7,396.50 = 7,396.50 : x
  2. Step 2: Convert to fraction form
    4,786/7,396.50 = 7,396.50/x
  3. Step 3: Cross multiply
    4,786x = 7,396.50 × 7,396.50
  4. Step 4: Simplify right side
    4,786x = 54,708,212.25
  5. Step 5: Solve for x
    x = 54,708,212.25/4,786
  6. Step 6: Final answer
    x = 11,430.88

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.