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Finding the Third Proportional to 28,173.75 and 43,602

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Solution

The third proportional to 28,173.75 and 43,602 is: 67,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173.75 : 43,602 = 43,602 : x
  2. Step 2: Convert to fraction form
    28,173.75/43,602 = 43,602/x
  3. Step 3: Cross multiply
    28,173.75x = 43,602 × 43,602
  4. Step 4: Simplify right side
    28,173.75x = 1,901,134,404
  5. Step 5: Solve for x
    x = 1,901,134,404/28,173.75
  6. Step 6: Final answer
    x = 67,478.93

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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.