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Finding the Fourth Proportional to 20,589.58, 30,884.12 and 5,007.22

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Solution

The fourth proportional to 20,589.58, 30,884.12 and 5,007.22 is: 7,510.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589.58 : 30,884.12 = 5,007.22 : x
  2. Step 2: Convert to fraction form
    20,589.58/30,884.12 = 5,007.22/x
  3. Step 3: Cross multiply
    20,589.58x = 30,884.12 × 5,007.22
  4. Step 4: Simplify right side
    20,589.58x = 154,643,583.35
  5. Step 5: Solve for x
    x = 154,643,583.35/20,589.58
  6. Step 6: Final answer
    x = 7,510.77

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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.