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Finding the Third Proportional to 591.50 and 692

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Solution

The third proportional to 591.50 and 692 is: 809.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.50 : 692 = 692 : x
  2. Step 2: Convert to fraction form
    591.50/692 = 692/x
  3. Step 3: Cross multiply
    591.50x = 692 × 692
  4. Step 4: Simplify right side
    591.50x = 478,864
  5. Step 5: Solve for x
    x = 478,864/591.50
  6. Step 6: Final answer
    x = 809.58

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Why These Related Problems?

These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.