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Finding the Third Proportional to 5,332.50 and 8,289

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Solution

The third proportional to 5,332.50 and 8,289 is: 12,884.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,332.50 : 8,289 = 8,289 : x
  2. Step 2: Convert to fraction form
    5,332.50/8,289 = 8,289/x
  3. Step 3: Cross multiply
    5,332.50x = 8,289 × 8,289
  4. Step 4: Simplify right side
    5,332.50x = 68,707,521
  5. Step 5: Solve for x
    x = 68,707,521/5,332.50
  6. Step 6: Final answer
    x = 12,884.67

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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.