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Finding the Fourth Proportional to 65,217.43, 90,000.39 and 36,928.63

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Solution

The fourth proportional to 65,217.43, 90,000.39 and 36,928.63 is: 50,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,217.43 : 90,000.39 = 36,928.63 : x
  2. Step 2: Convert to fraction form
    65,217.43/90,000.39 = 36,928.63/x
  3. Step 3: Cross multiply
    65,217.43x = 90,000.39 × 36,928.63
  4. Step 4: Simplify right side
    65,217.43x = 3,323,591,102.17
  5. Step 5: Solve for x
    x = 3,323,591,102.17/65,217.43
  6. Step 6: Final answer
    x = 50,961.70

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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.