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Finding the Third Proportional to 918.25 and 1,926.25

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Solution

The third proportional to 918.25 and 1,926.25 is: 4,040.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    918.25 : 1,926.25 = 1,926.25 : x
  2. Step 2: Convert to fraction form
    918.25/1,926.25 = 1,926.25/x
  3. Step 3: Cross multiply
    918.25x = 1,926.25 × 1,926.25
  4. Step 4: Simplify right side
    918.25x = 3,710,439.06
  5. Step 5: Solve for x
    x = 3,710,439.06/918.25
  6. Step 6: Final answer
    x = 4,040.77

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.