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Finding the Third Proportional to 526.50 and 824

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Solution

The third proportional to 526.50 and 824 is: 1,289.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.50 : 824 = 824 : x
  2. Step 2: Convert to fraction form
    526.50/824 = 824/x
  3. Step 3: Cross multiply
    526.50x = 824 × 824
  4. Step 4: Simplify right side
    526.50x = 678,976
  5. Step 5: Solve for x
    x = 678,976/526.50
  6. Step 6: Final answer
    x = 1,289.60

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.