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Finding the Third Proportional to 4,477.50 and 8,266.50

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Solution

The third proportional to 4,477.50 and 8,266.50 is: 15,261.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,477.50 : 8,266.50 = 8,266.50 : x
  2. Step 2: Convert to fraction form
    4,477.50/8,266.50 = 8,266.50/x
  3. Step 3: Cross multiply
    4,477.50x = 8,266.50 × 8,266.50
  4. Step 4: Simplify right side
    4,477.50x = 68,335,022.25
  5. Step 5: Solve for x
    x = 68,335,022.25/4,477.50
  6. Step 6: Final answer
    x = 15,261.87

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.