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Finding the Third Proportional to 5,219 and 7,316

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Solution

The third proportional to 5,219 and 7,316 is: 10,255.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219 : 7,316 = 7,316 : x
  2. Step 2: Convert to fraction form
    5,219/7,316 = 7,316/x
  3. Step 3: Cross multiply
    5,219x = 7,316 × 7,316
  4. Step 4: Simplify right side
    5,219x = 53,523,856
  5. Step 5: Solve for x
    x = 53,523,856/5,219
  6. Step 6: Final answer
    x = 10,255.58

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.