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Finding the Third Proportional to 784.44 and 1,692.63

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Solution

The third proportional to 784.44 and 1,692.63 is: 3,652.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    784.44 : 1,692.63 = 1,692.63 : x
  2. Step 2: Convert to fraction form
    784.44/1,692.63 = 1,692.63/x
  3. Step 3: Cross multiply
    784.44x = 1,692.63 × 1,692.63
  4. Step 4: Simplify right side
    784.44x = 2,864,979.39
  5. Step 5: Solve for x
    x = 2,864,979.39/784.44
  6. Step 6: Final answer
    x = 3,652.27

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.