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Finding the Third Proportional to 7,146 and 15,376.50

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Solution

The third proportional to 7,146 and 15,376.50 is: 33,086.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146 : 15,376.50 = 15,376.50 : x
  2. Step 2: Convert to fraction form
    7,146/15,376.50 = 15,376.50/x
  3. Step 3: Cross multiply
    7,146x = 15,376.50 × 15,376.50
  4. Step 4: Simplify right side
    7,146x = 236,436,752.25
  5. Step 5: Solve for x
    x = 236,436,752.25/7,146
  6. Step 6: Final answer
    x = 33,086.59

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.