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Finding the Third Proportional to 30,360 and 47,010

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Solution

The third proportional to 30,360 and 47,010 is: 72,791.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,360 : 47,010 = 47,010 : x
  2. Step 2: Convert to fraction form
    30,360/47,010 = 47,010/x
  3. Step 3: Cross multiply
    30,360x = 47,010 × 47,010
  4. Step 4: Simplify right side
    30,360x = 2,209,940,100
  5. Step 5: Solve for x
    x = 2,209,940,100/30,360
  6. Step 6: Final answer
    x = 72,791.18

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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.