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Finding the Fourth Proportional to 20,578.44, 30,867.44 and 4,996.08

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Solution

The fourth proportional to 20,578.44, 30,867.44 and 4,996.08 is: 7,494.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,578.44 : 30,867.44 = 4,996.08 : x
  2. Step 2: Convert to fraction form
    20,578.44/30,867.44 = 4,996.08/x
  3. Step 3: Cross multiply
    20,578.44x = 30,867.44 × 4,996.08
  4. Step 4: Simplify right side
    20,578.44x = 154,216,199.64
  5. Step 5: Solve for x
    x = 154,216,199.64/20,578.44
  6. Step 6: Final answer
    x = 7,494.07

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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.