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Finding the Fourth Proportional to 74,340, 111,510 and 25,092

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Solution

The fourth proportional to 74,340, 111,510 and 25,092 is: 37,638

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,340 : 111,510 = 25,092 : x
  2. Step 2: Convert to fraction form
    74,340/111,510 = 25,092/x
  3. Step 3: Cross multiply
    74,340x = 111,510 × 25,092
  4. Step 4: Simplify right side
    74,340x = 2,798,008,920
  5. Step 5: Solve for x
    x = 2,798,008,920/74,340
  6. Step 6: Final answer
    x = 37,638

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.