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Finding the Third Proportional to 611.75 and 973.25

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Solution

The third proportional to 611.75 and 973.25 is: 1,548.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.75 : 973.25 = 973.25 : x
  2. Step 2: Convert to fraction form
    611.75/973.25 = 973.25/x
  3. Step 3: Cross multiply
    611.75x = 973.25 × 973.25
  4. Step 4: Simplify right side
    611.75x = 947,215.56
  5. Step 5: Solve for x
    x = 947,215.56/611.75
  6. Step 6: Final answer
    x = 1,548.37

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.