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Finding the Third Proportional to 530.94 and 825.56

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Solution

The third proportional to 530.94 and 825.56 is: 1,283.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.94 : 825.56 = 825.56 : x
  2. Step 2: Convert to fraction form
    530.94/825.56 = 825.56/x
  3. Step 3: Cross multiply
    530.94x = 825.56 × 825.56
  4. Step 4: Simplify right side
    530.94x = 681,553.44
  5. Step 5: Solve for x
    x = 681,553.44/530.94
  6. Step 6: Final answer
    x = 1,283.68

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.