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Finding the Third Proportional to 16,503.75 and 17,880.75

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Solution

The third proportional to 16,503.75 and 17,880.75 is: 19,372.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,503.75 : 17,880.75 = 17,880.75 : x
  2. Step 2: Convert to fraction form
    16,503.75/17,880.75 = 17,880.75/x
  3. Step 3: Cross multiply
    16,503.75x = 17,880.75 × 17,880.75
  4. Step 4: Simplify right side
    16,503.75x = 319,721,220.56
  5. Step 5: Solve for x
    x = 319,721,220.56/16,503.75
  6. Step 6: Final answer
    x = 19,372.64

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.