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Finding the Fourth Proportional to 67,272.88, 92,836.60 and 38,994.96

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Solution

The fourth proportional to 67,272.88, 92,836.60 and 38,994.96 is: 53,813.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,272.88 : 92,836.60 = 38,994.96 : x
  2. Step 2: Convert to fraction form
    67,272.88/92,836.60 = 38,994.96/x
  3. Step 3: Cross multiply
    67,272.88x = 92,836.60 × 38,994.96
  4. Step 4: Simplify right side
    67,272.88x = 3,620,159,503.54
  5. Step 5: Solve for x
    x = 3,620,159,503.54/67,272.88
  6. Step 6: Final answer
    x = 53,813.06

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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.