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Finding the Third Proportional to 1,789.88 and 3,784.50

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Solution

The third proportional to 1,789.88 and 3,784.50 is: 8,001.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.88 : 3,784.50 = 3,784.50 : x
  2. Step 2: Convert to fraction form
    1,789.88/3,784.50 = 3,784.50/x
  3. Step 3: Cross multiply
    1,789.88x = 3,784.50 × 3,784.50
  4. Step 4: Simplify right side
    1,789.88x = 14,322,440.25
  5. Step 5: Solve for x
    x = 14,322,440.25/1,789.88
  6. Step 6: Final answer
    x = 8,001.92

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These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.