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Finding the Fourth Proportional to 21,482.82, 32,219.95 and 7,249.91

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Solution

The fourth proportional to 21,482.82, 32,219.95 and 7,249.91 is: 10,873.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,482.82 : 32,219.95 = 7,249.91 : x
  2. Step 2: Convert to fraction form
    21,482.82/32,219.95 = 7,249.91/x
  3. Step 3: Cross multiply
    21,482.82x = 32,219.95 × 7,249.91
  4. Step 4: Simplify right side
    21,482.82x = 233,591,540.36
  5. Step 5: Solve for x
    x = 233,591,540.36/21,482.82
  6. Step 6: Final answer
    x = 10,873.41

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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.