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Finding the Third Proportional to 9,118.13 and 13,656.94

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Solution

The third proportional to 9,118.13 and 13,656.94 is: 20,455.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.13 : 13,656.94 = 13,656.94 : x
  2. Step 2: Convert to fraction form
    9,118.13/13,656.94 = 13,656.94/x
  3. Step 3: Cross multiply
    9,118.13x = 13,656.94 × 13,656.94
  4. Step 4: Simplify right side
    9,118.13x = 186,511,941.88
  5. Step 5: Solve for x
    x = 186,511,941.88/9,118.13
  6. Step 6: Final answer
    x = 20,455.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.