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Finding the Third Proportional to 922.50 and 1,899

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Solution

The third proportional to 922.50 and 1,899 is: 3,909.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    922.50 : 1,899 = 1,899 : x
  2. Step 2: Convert to fraction form
    922.50/1,899 = 1,899/x
  3. Step 3: Cross multiply
    922.50x = 1,899 × 1,899
  4. Step 4: Simplify right side
    922.50x = 3,606,201
  5. Step 5: Solve for x
    x = 3,606,201/922.50
  6. Step 6: Final answer
    x = 3,909.16

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.