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Finding the Third Proportional to 3,290 and 7,106

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Solution

The third proportional to 3,290 and 7,106 is: 15,348.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290 : 7,106 = 7,106 : x
  2. Step 2: Convert to fraction form
    3,290/7,106 = 7,106/x
  3. Step 3: Cross multiply
    3,290x = 7,106 × 7,106
  4. Step 4: Simplify right side
    3,290x = 50,495,236
  5. Step 5: Solve for x
    x = 50,495,236/3,290
  6. Step 6: Final answer
    x = 15,348.10

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.