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Finding the Fourth Proportional to 21,995.95, 32,987.39 and 6,199.84

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Solution

The fourth proportional to 21,995.95, 32,987.39 and 6,199.84 is: 9,297.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.95 : 32,987.39 = 6,199.84 : x
  2. Step 2: Convert to fraction form
    21,995.95/32,987.39 = 6,199.84/x
  3. Step 3: Cross multiply
    21,995.95x = 32,987.39 × 6,199.84
  4. Step 4: Simplify right side
    21,995.95x = 204,516,375.08
  5. Step 5: Solve for x
    x = 204,516,375.08/21,995.95
  6. Step 6: Final answer
    x = 9,297.91

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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.