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Finding the Third Proportional to 6,520 and 7,492

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Solution

The third proportional to 6,520 and 7,492 is: 8,608.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520 : 7,492 = 7,492 : x
  2. Step 2: Convert to fraction form
    6,520/7,492 = 7,492/x
  3. Step 3: Cross multiply
    6,520x = 7,492 × 7,492
  4. Step 4: Simplify right side
    6,520x = 56,130,064
  5. Step 5: Solve for x
    x = 56,130,064/6,520
  6. Step 6: Final answer
    x = 8,608.91

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.