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Finding the Third Proportional to 4,810.50 and 7,317

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Solution

The third proportional to 4,810.50 and 7,317 is: 11,129.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,810.50 : 7,317 = 7,317 : x
  2. Step 2: Convert to fraction form
    4,810.50/7,317 = 7,317/x
  3. Step 3: Cross multiply
    4,810.50x = 7,317 × 7,317
  4. Step 4: Simplify right side
    4,810.50x = 53,538,489
  5. Step 5: Solve for x
    x = 53,538,489/4,810.50
  6. Step 6: Final answer
    x = 11,129.51

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.