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Finding the Third Proportional to 30,459.50 and 47,793

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Solution

The third proportional to 30,459.50 and 47,793 is: 74,990.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,459.50 : 47,793 = 47,793 : x
  2. Step 2: Convert to fraction form
    30,459.50/47,793 = 47,793/x
  3. Step 3: Cross multiply
    30,459.50x = 47,793 × 47,793
  4. Step 4: Simplify right side
    30,459.50x = 2,284,170,849
  5. Step 5: Solve for x
    x = 2,284,170,849/30,459.50
  6. Step 6: Final answer
    x = 74,990.42

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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.