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Finding the Fourth Proportional to 12,394.48, 18,589.48 and 4,998.64

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Solution

The fourth proportional to 12,394.48, 18,589.48 and 4,998.64 is: 7,497.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,394.48 : 18,589.48 = 4,998.64 : x
  2. Step 2: Convert to fraction form
    12,394.48/18,589.48 = 4,998.64/x
  3. Step 3: Cross multiply
    12,394.48x = 18,589.48 × 4,998.64
  4. Step 4: Simplify right side
    12,394.48x = 92,922,118.31
  5. Step 5: Solve for x
    x = 92,922,118.31/12,394.48
  6. Step 6: Final answer
    x = 7,497.06

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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.