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Finding the Third Proportional to 18,472.50 and 28,656

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Solution

The third proportional to 18,472.50 and 28,656 is: 44,453.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,472.50 : 28,656 = 28,656 : x
  2. Step 2: Convert to fraction form
    18,472.50/28,656 = 28,656/x
  3. Step 3: Cross multiply
    18,472.50x = 28,656 × 28,656
  4. Step 4: Simplify right side
    18,472.50x = 821,166,336
  5. Step 5: Solve for x
    x = 821,166,336/18,472.50
  6. Step 6: Final answer
    x = 44,453.45

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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.