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Finding the Third Proportional to 528 and 882.75

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Solution

The third proportional to 528 and 882.75 is: 1,475.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    528 : 882.75 = 882.75 : x
  2. Step 2: Convert to fraction form
    528/882.75 = 882.75/x
  3. Step 3: Cross multiply
    528x = 882.75 × 882.75
  4. Step 4: Simplify right side
    528x = 779,247.56
  5. Step 5: Solve for x
    x = 779,247.56/528
  6. Step 6: Final answer
    x = 1,475.85

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.