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Finding the Third Proportional to 5,520 and 7,416

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Solution

The third proportional to 5,520 and 7,416 is: 9,963.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520 : 7,416 = 7,416 : x
  2. Step 2: Convert to fraction form
    5,520/7,416 = 7,416/x
  3. Step 3: Cross multiply
    5,520x = 7,416 × 7,416
  4. Step 4: Simplify right side
    5,520x = 54,997,056
  5. Step 5: Solve for x
    x = 54,997,056/5,520
  6. Step 6: Final answer
    x = 9,963.23

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.