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Finding the Third Proportional to 30,028 and 47,102

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Solution

The third proportional to 30,028 and 47,102 is: 73,884.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,028 : 47,102 = 47,102 : x
  2. Step 2: Convert to fraction form
    30,028/47,102 = 47,102/x
  3. Step 3: Cross multiply
    30,028x = 47,102 × 47,102
  4. Step 4: Simplify right side
    30,028x = 2,218,598,404
  5. Step 5: Solve for x
    x = 2,218,598,404/30,028
  6. Step 6: Final answer
    x = 73,884.32

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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.