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Finding the Third Proportional to 517 and 882.50

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Solution

The third proportional to 517 and 882.50 is: 1,506.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    517 : 882.50 = 882.50 : x
  2. Step 2: Convert to fraction form
    517/882.50 = 882.50/x
  3. Step 3: Cross multiply
    517x = 882.50 × 882.50
  4. Step 4: Simplify right side
    517x = 778,806.25
  5. Step 5: Solve for x
    x = 778,806.25/517
  6. Step 6: Final answer
    x = 1,506.40

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Why These Related Problems?

These problems maintain the same ratio (1.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.