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Finding the Third Proportional to 8,604 and 13,104

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Solution

The third proportional to 8,604 and 13,104 is: 19,957.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604 : 13,104 = 13,104 : x
  2. Step 2: Convert to fraction form
    8,604/13,104 = 13,104/x
  3. Step 3: Cross multiply
    8,604x = 13,104 × 13,104
  4. Step 4: Simplify right side
    8,604x = 171,714,816
  5. Step 5: Solve for x
    x = 171,714,816/8,604
  6. Step 6: Final answer
    x = 19,957.56

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.