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Finding the Fourth Proportional to 68,614.80, 102,922.20 and 33,536.40

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Solution

The fourth proportional to 68,614.80, 102,922.20 and 33,536.40 is: 50,304.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,614.80 : 102,922.20 = 33,536.40 : x
  2. Step 2: Convert to fraction form
    68,614.80/102,922.20 = 33,536.40/x
  3. Step 3: Cross multiply
    68,614.80x = 102,922.20 × 33,536.40
  4. Step 4: Simplify right side
    68,614.80x = 3,451,640,068.08
  5. Step 5: Solve for x
    x = 3,451,640,068.08/68,614.80
  6. Step 6: Final answer
    x = 50,304.60

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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.