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Finding the Fourth Proportional to 45,340.80, 67,876.80 and 33,705.60

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Solution

The fourth proportional to 45,340.80, 67,876.80 and 33,705.60 is: 50,458.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,340.80 : 67,876.80 = 33,705.60 : x
  2. Step 2: Convert to fraction form
    45,340.80/67,876.80 = 33,705.60/x
  3. Step 3: Cross multiply
    45,340.80x = 67,876.80 × 33,705.60
  4. Step 4: Simplify right side
    45,340.80x = 2,287,828,270.08
  5. Step 5: Solve for x
    x = 2,287,828,270.08/45,340.80
  6. Step 6: Final answer
    x = 50,458.49

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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.