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Finding the Fourth Proportional to 67,377.60, 92,960.37 and 39,077.82

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Solution

The fourth proportional to 67,377.60, 92,960.37 and 39,077.82 is: 53,915.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,377.60 : 92,960.37 = 39,077.82 : x
  2. Step 2: Convert to fraction form
    67,377.60/92,960.37 = 39,077.82/x
  3. Step 3: Cross multiply
    67,377.60x = 92,960.37 × 39,077.82
  4. Step 4: Simplify right side
    67,377.60x = 3,632,688,605.99
  5. Step 5: Solve for x
    x = 3,632,688,605.99/67,377.60
  6. Step 6: Final answer
    x = 53,915.38

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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.