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Finding the Third Proportional to 5,319 and 6,868.50

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Solution

The third proportional to 5,319 and 6,868.50 is: 8,869.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319 : 6,868.50 = 6,868.50 : x
  2. Step 2: Convert to fraction form
    5,319/6,868.50 = 6,868.50/x
  3. Step 3: Cross multiply
    5,319x = 6,868.50 × 6,868.50
  4. Step 4: Simplify right side
    5,319x = 47,176,292.25
  5. Step 5: Solve for x
    x = 47,176,292.25/5,319
  6. Step 6: Final answer
    x = 8,869.39

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.