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Finding the Third Proportional to 14,728.50 and 31,185

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Solution

The third proportional to 14,728.50 and 31,185 is: 66,028.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,728.50 : 31,185 = 31,185 : x
  2. Step 2: Convert to fraction form
    14,728.50/31,185 = 31,185/x
  3. Step 3: Cross multiply
    14,728.50x = 31,185 × 31,185
  4. Step 4: Simplify right side
    14,728.50x = 972,504,225
  5. Step 5: Solve for x
    x = 972,504,225/14,728.50
  6. Step 6: Final answer
    x = 66,028.74

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.