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Finding the Third Proportional to 531 and 929.25

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Solution

The third proportional to 531 and 929.25 is: 1,626.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    531 : 929.25 = 929.25 : x
  2. Step 2: Convert to fraction form
    531/929.25 = 929.25/x
  3. Step 3: Cross multiply
    531x = 929.25 × 929.25
  4. Step 4: Simplify right side
    531x = 863,505.56
  5. Step 5: Solve for x
    x = 863,505.56/531
  6. Step 6: Final answer
    x = 1,626.19

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Why These Related Problems?

These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.