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Finding the Third Proportional to 866.95 and 1,345.99

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Solution

The third proportional to 866.95 and 1,345.99 is: 2,089.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    866.95 : 1,345.99 = 1,345.99 : x
  2. Step 2: Convert to fraction form
    866.95/1,345.99 = 1,345.99/x
  3. Step 3: Cross multiply
    866.95x = 1,345.99 × 1,345.99
  4. Step 4: Simplify right side
    866.95x = 1,811,694.97
  5. Step 5: Solve for x
    x = 1,811,694.97/866.95
  6. Step 6: Final answer
    x = 2,089.73

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.