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Finding the Fourth Proportional to 21,844.80, 32,770.80 and 7,057.44

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Solution

The fourth proportional to 21,844.80, 32,770.80 and 7,057.44 is: 10,587.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,844.80 : 32,770.80 = 7,057.44 : x
  2. Step 2: Convert to fraction form
    21,844.80/32,770.80 = 7,057.44/x
  3. Step 3: Cross multiply
    21,844.80x = 32,770.80 × 7,057.44
  4. Step 4: Simplify right side
    21,844.80x = 231,277,954.75
  5. Step 5: Solve for x
    x = 231,277,954.75/21,844.80
  6. Step 6: Final answer
    x = 10,587.32

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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.