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Finding the Third Proportional to 529 and 632.50

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Solution

The third proportional to 529 and 632.50 is: 756.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    529 : 632.50 = 632.50 : x
  2. Step 2: Convert to fraction form
    529/632.50 = 632.50/x
  3. Step 3: Cross multiply
    529x = 632.50 × 632.50
  4. Step 4: Simplify right side
    529x = 400,056.25
  5. Step 5: Solve for x
    x = 400,056.25/529
  6. Step 6: Final answer
    x = 756.25

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Why These Related Problems?

These problems maintain the same ratio (1.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.