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Finding the Third Proportional to 786.94 and 1,927.69

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Solution

The third proportional to 786.94 and 1,927.69 is: 4,722.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    786.94 : 1,927.69 = 1,927.69 : x
  2. Step 2: Convert to fraction form
    786.94/1,927.69 = 1,927.69/x
  3. Step 3: Cross multiply
    786.94x = 1,927.69 × 1,927.69
  4. Step 4: Simplify right side
    786.94x = 3,715,979.10
  5. Step 5: Solve for x
    x = 3,715,979.10/786.94
  6. Step 6: Final answer
    x = 4,722.08

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Why These Related Problems?

These problems maintain the same ratio (2.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.