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Finding the Fourth Proportional to 67,354.80, 100,983.60 and 43,994.40

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Solution

The fourth proportional to 67,354.80, 100,983.60 and 43,994.40 is: 65,959.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,354.80 : 100,983.60 = 43,994.40 : x
  2. Step 2: Convert to fraction form
    67,354.80/100,983.60 = 43,994.40/x
  3. Step 3: Cross multiply
    67,354.80x = 100,983.60 × 43,994.40
  4. Step 4: Simplify right side
    67,354.80x = 4,442,712,891.84
  5. Step 5: Solve for x
    x = 4,442,712,891.84/67,354.80
  6. Step 6: Final answer
    x = 65,959.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.