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Finding the Fourth Proportional to 68,512.80, 102,826.80 and 33,482.40

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Solution

The fourth proportional to 68,512.80, 102,826.80 and 33,482.40 is: 50,251.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,512.80 : 102,826.80 = 33,482.40 : x
  2. Step 2: Convert to fraction form
    68,512.80/102,826.80 = 33,482.40/x
  3. Step 3: Cross multiply
    68,512.80x = 102,826.80 × 33,482.40
  4. Step 4: Simplify right side
    68,512.80x = 3,442,888,048.32
  5. Step 5: Solve for x
    x = 3,442,888,048.32/68,512.80
  6. Step 6: Final answer
    x = 50,251.75

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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.