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Finding the Fourth Proportional to 67,300.96, 92,872 and 39,015.84

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Solution

The fourth proportional to 67,300.96, 92,872 and 39,015.84 is: 53,839.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,300.96 : 92,872 = 39,015.84 : x
  2. Step 2: Convert to fraction form
    67,300.96/92,872 = 39,015.84/x
  3. Step 3: Cross multiply
    67,300.96x = 92,872 × 39,015.84
  4. Step 4: Simplify right side
    67,300.96x = 3,623,479,092.48
  5. Step 5: Solve for x
    x = 3,623,479,092.48/67,300.96
  6. Step 6: Final answer
    x = 53,839.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.