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Finding the Fourth Proportional to 20,994.48, 31,482.24 and 6,198.24

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Solution

The fourth proportional to 20,994.48, 31,482.24 and 6,198.24 is: 9,294.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,994.48 : 31,482.24 = 6,198.24 : x
  2. Step 2: Convert to fraction form
    20,994.48/31,482.24 = 6,198.24/x
  3. Step 3: Cross multiply
    20,994.48x = 31,482.24 × 6,198.24
  4. Step 4: Simplify right side
    20,994.48x = 195,134,479.26
  5. Step 5: Solve for x
    x = 195,134,479.26/20,994.48
  6. Step 6: Final answer
    x = 9,294.56

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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.