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Finding the Third Proportional to 5,290 and 6,262

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Solution

The third proportional to 5,290 and 6,262 is: 7,412.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290 : 6,262 = 6,262 : x
  2. Step 2: Convert to fraction form
    5,290/6,262 = 6,262/x
  3. Step 3: Cross multiply
    5,290x = 6,262 × 6,262
  4. Step 4: Simplify right side
    5,290x = 39,212,644
  5. Step 5: Solve for x
    x = 39,212,644/5,290
  6. Step 6: Final answer
    x = 7,412.60

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.