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Finding the Third Proportional to 577.13 and 1,235.25

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Solution

The third proportional to 577.13 and 1,235.25 is: 2,643.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.13 : 1,235.25 = 1,235.25 : x
  2. Step 2: Convert to fraction form
    577.13/1,235.25 = 1,235.25/x
  3. Step 3: Cross multiply
    577.13x = 1,235.25 × 1,235.25
  4. Step 4: Simplify right side
    577.13x = 1,525,842.56
  5. Step 5: Solve for x
    x = 1,525,842.56/577.13
  6. Step 6: Final answer
    x = 2,643.87

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.