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Finding the Fourth Proportional to 67,310.76, 92,893.23 and 38,639.70

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Solution

The fourth proportional to 67,310.76, 92,893.23 and 38,639.70 is: 53,325.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,310.76 : 92,893.23 = 38,639.70 : x
  2. Step 2: Convert to fraction form
    67,310.76/92,893.23 = 38,639.70/x
  3. Step 3: Cross multiply
    67,310.76x = 92,893.23 × 38,639.70
  4. Step 4: Simplify right side
    67,310.76x = 3,589,366,771.46
  5. Step 5: Solve for x
    x = 3,589,366,771.46/67,310.76
  6. Step 6: Final answer
    x = 53,325.31

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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.