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Finding the Third Proportional to 722.53 and 929.81

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Solution

The third proportional to 722.53 and 929.81 is: 1,196.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.53 : 929.81 = 929.81 : x
  2. Step 2: Convert to fraction form
    722.53/929.81 = 929.81/x
  3. Step 3: Cross multiply
    722.53x = 929.81 × 929.81
  4. Step 4: Simplify right side
    722.53x = 864,551.29
  5. Step 5: Solve for x
    x = 864,551.29/722.53
  6. Step 6: Final answer
    x = 1,196.56

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.