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Finding the Third Proportional to 5,106 and 8,970

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Solution

The third proportional to 5,106 and 8,970 is: 15,758.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106 : 8,970 = 8,970 : x
  2. Step 2: Convert to fraction form
    5,106/8,970 = 8,970/x
  3. Step 3: Cross multiply
    5,106x = 8,970 × 8,970
  4. Step 4: Simplify right side
    5,106x = 80,460,900
  5. Step 5: Solve for x
    x = 80,460,900/5,106
  6. Step 6: Final answer
    x = 15,758.11

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.