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Finding the Third Proportional to 7,832.74 and 12,134.32

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Solution

The third proportional to 7,832.74 and 12,134.32 is: 18,798.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,832.74 : 12,134.32 = 12,134.32 : x
  2. Step 2: Convert to fraction form
    7,832.74/12,134.32 = 12,134.32/x
  3. Step 3: Cross multiply
    7,832.74x = 12,134.32 × 12,134.32
  4. Step 4: Simplify right side
    7,832.74x = 147,241,729.45
  5. Step 5: Solve for x
    x = 147,241,729.45/7,832.74
  6. Step 6: Final answer
    x = 18,798.24

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.