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Finding the Third Proportional to 17,988.75 and 28,157.63

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Solution

The third proportional to 17,988.75 and 28,157.63 is: 44,074.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,988.75 : 28,157.63 = 28,157.63 : x
  2. Step 2: Convert to fraction form
    17,988.75/28,157.63 = 28,157.63/x
  3. Step 3: Cross multiply
    17,988.75x = 28,157.63 × 28,157.63
  4. Step 4: Simplify right side
    17,988.75x = 792,851,845.64
  5. Step 5: Solve for x
    x = 792,851,845.64/17,988.75
  6. Step 6: Final answer
    x = 44,074.87

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.