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Finding the Third Proportional to 6,590 and 7,292

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Solution

The third proportional to 6,590 and 7,292 is: 8,068.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,590 : 7,292 = 7,292 : x
  2. Step 2: Convert to fraction form
    6,590/7,292 = 7,292/x
  3. Step 3: Cross multiply
    6,590x = 7,292 × 7,292
  4. Step 4: Simplify right side
    6,590x = 53,173,264
  5. Step 5: Solve for x
    x = 53,173,264/6,590
  6. Step 6: Final answer
    x = 8,068.78

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.