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Finding the Fourth Proportional to 67,821.67, 93,571.50 and 40,953.97

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Solution

The fourth proportional to 67,821.67, 93,571.50 and 40,953.97 is: 56,502.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,821.67 : 93,571.50 = 40,953.97 : x
  2. Step 2: Convert to fraction form
    67,821.67/93,571.50 = 40,953.97/x
  3. Step 3: Cross multiply
    67,821.67x = 93,571.50 × 40,953.97
  4. Step 4: Simplify right side
    67,821.67x = 3,832,124,403.86
  5. Step 5: Solve for x
    x = 3,832,124,403.86/67,821.67
  6. Step 6: Final answer
    x = 56,502.95

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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.