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Finding the Fourth Proportional to 55,175.25, 82,763.15 and 13,622.25

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Solution

The fourth proportional to 55,175.25, 82,763.15 and 13,622.25 is: 20,433.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,175.25 : 82,763.15 = 13,622.25 : x
  2. Step 2: Convert to fraction form
    55,175.25/82,763.15 = 13,622.25/x
  3. Step 3: Cross multiply
    55,175.25x = 82,763.15 × 13,622.25
  4. Step 4: Simplify right side
    55,175.25x = 1,127,420,251.98
  5. Step 5: Solve for x
    x = 1,127,420,251.98/55,175.25
  6. Step 6: Final answer
    x = 20,433.44

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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.