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Finding the Third Proportional to 7,018.50 and 11,185

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Solution

The third proportional to 7,018.50 and 11,185 is: 17,824.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018.50 : 11,185 = 11,185 : x
  2. Step 2: Convert to fraction form
    7,018.50/11,185 = 11,185/x
  3. Step 3: Cross multiply
    7,018.50x = 11,185 × 11,185
  4. Step 4: Simplify right side
    7,018.50x = 125,104,225
  5. Step 5: Solve for x
    x = 125,104,225/7,018.50
  6. Step 6: Final answer
    x = 17,824.92

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.