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Finding the Fourth Proportional to 67,364.60, 92,981.07 and 39,793.41

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Solution

The fourth proportional to 67,364.60, 92,981.07 and 39,793.41 is: 54,925.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,364.60 : 92,981.07 = 39,793.41 : x
  2. Step 2: Convert to fraction form
    67,364.60/92,981.07 = 39,793.41/x
  3. Step 3: Cross multiply
    67,364.60x = 92,981.07 × 39,793.41
  4. Step 4: Simplify right side
    67,364.60x = 3,700,033,840.75
  5. Step 5: Solve for x
    x = 3,700,033,840.75/67,364.60
  6. Step 6: Final answer
    x = 54,925.50

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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.