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Finding the Third Proportional to 764.86 and 1,202.13

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Solution

The third proportional to 764.86 and 1,202.13 is: 1,889.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    764.86 : 1,202.13 = 1,202.13 : x
  2. Step 2: Convert to fraction form
    764.86/1,202.13 = 1,202.13/x
  3. Step 3: Cross multiply
    764.86x = 1,202.13 × 1,202.13
  4. Step 4: Simplify right side
    764.86x = 1,445,123.30
  5. Step 5: Solve for x
    x = 1,445,123.30/764.86
  6. Step 6: Final answer
    x = 1,889.40

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.