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Finding the Fourth Proportional to 67,872.35, 101,784.14 and 23,487.05

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Solution

The fourth proportional to 67,872.35, 101,784.14 and 23,487.05 is: 35,222.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,872.35 : 101,784.14 = 23,487.05 : x
  2. Step 2: Convert to fraction form
    67,872.35/101,784.14 = 23,487.05/x
  3. Step 3: Cross multiply
    67,872.35x = 101,784.14 × 23,487.05
  4. Step 4: Simplify right side
    67,872.35x = 2,390,609,067.95
  5. Step 5: Solve for x
    x = 2,390,609,067.95/67,872.35
  6. Step 6: Final answer
    x = 35,222.13

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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.