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Finding the Fourth Proportional to 67,487.87, 93,131.78 and 36,859.97

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Solution

The fourth proportional to 67,487.87, 93,131.78 and 36,859.97 is: 50,865.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,487.87 : 93,131.78 = 36,859.97 : x
  2. Step 2: Convert to fraction form
    67,487.87/93,131.78 = 36,859.97/x
  3. Step 3: Cross multiply
    67,487.87x = 93,131.78 × 36,859.97
  4. Step 4: Simplify right side
    67,487.87x = 3,432,833,966.89
  5. Step 5: Solve for x
    x = 3,432,833,966.89/67,487.87
  6. Step 6: Final answer
    x = 50,865.94

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1.5x scale

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.