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Finding the Fourth Proportional to 43,642.80, 65,415.60 and 22,574.70

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Solution

The fourth proportional to 43,642.80, 65,415.60 and 22,574.70 is: 33,836.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,642.80 : 65,415.60 = 22,574.70 : x
  2. Step 2: Convert to fraction form
    43,642.80/65,415.60 = 22,574.70/x
  3. Step 3: Cross multiply
    43,642.80x = 65,415.60 × 22,574.70
  4. Step 4: Simplify right side
    43,642.80x = 1,476,737,545.32
  5. Step 5: Solve for x
    x = 1,476,737,545.32/43,642.80
  6. Step 6: Final answer
    x = 33,836.91

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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.