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Finding the Third Proportional to 931.88 and 1,268.63

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Solution

The third proportional to 931.88 and 1,268.63 is: 1,727.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    931.88 : 1,268.63 = 1,268.63 : x
  2. Step 2: Convert to fraction form
    931.88/1,268.63 = 1,268.63/x
  3. Step 3: Cross multiply
    931.88x = 1,268.63 × 1,268.63
  4. Step 4: Simplify right side
    931.88x = 1,609,409.39
  5. Step 5: Solve for x
    x = 1,609,409.39/931.88
  6. Step 6: Final answer
    x = 1,727.07

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.