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Finding the Third Proportional to 921.50 and 2,237.75

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Solution

The third proportional to 921.50 and 2,237.75 is: 5,434.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    921.50 : 2,237.75 = 2,237.75 : x
  2. Step 2: Convert to fraction form
    921.50/2,237.75 = 2,237.75/x
  3. Step 3: Cross multiply
    921.50x = 2,237.75 × 2,237.75
  4. Step 4: Simplify right side
    921.50x = 5,007,525.06
  5. Step 5: Solve for x
    x = 5,007,525.06/921.50
  6. Step 6: Final answer
    x = 5,434.10

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Why These Related Problems?

These problems maintain the same ratio (2.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.