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Finding the Third Proportional to 4,346 and 8,470

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Solution

The third proportional to 4,346 and 8,470 is: 16,507.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,346 : 8,470 = 8,470 : x
  2. Step 2: Convert to fraction form
    4,346/8,470 = 8,470/x
  3. Step 3: Cross multiply
    4,346x = 8,470 × 8,470
  4. Step 4: Simplify right side
    4,346x = 71,740,900
  5. Step 5: Solve for x
    x = 71,740,900/4,346
  6. Step 6: Final answer
    x = 16,507.34

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.