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Finding the Third Proportional to 5,472 and 8,316

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Solution

The third proportional to 5,472 and 8,316 is: 12,638.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,472 : 8,316 = 8,316 : x
  2. Step 2: Convert to fraction form
    5,472/8,316 = 8,316/x
  3. Step 3: Cross multiply
    5,472x = 8,316 × 8,316
  4. Step 4: Simplify right side
    5,472x = 69,155,856
  5. Step 5: Solve for x
    x = 69,155,856/5,472
  6. Step 6: Final answer
    x = 12,638.13

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.