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Finding the Third Proportional to 692.30 and 1,011.23

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Solution

The third proportional to 692.30 and 1,011.23 is: 1,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.30 : 1,011.23 = 1,011.23 : x
  2. Step 2: Convert to fraction form
    692.30/1,011.23 = 1,011.23/x
  3. Step 3: Cross multiply
    692.30x = 1,011.23 × 1,011.23
  4. Step 4: Simplify right side
    692.30x = 1,022,594.96
  5. Step 5: Solve for x
    x = 1,022,594.96/692.30
  6. Step 6: Final answer
    x = 1,477.10

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.