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Finding the Fourth Proportional to 20,544.96, 30,790.98 and 9,292.08

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Solution

The fourth proportional to 20,544.96, 30,790.98 and 9,292.08 is: 13,926.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.96 : 30,790.98 = 9,292.08 : x
  2. Step 2: Convert to fraction form
    20,544.96/30,790.98 = 9,292.08/x
  3. Step 3: Cross multiply
    20,544.96x = 30,790.98 × 9,292.08
  4. Step 4: Simplify right side
    20,544.96x = 286,112,249.44
  5. Step 5: Solve for x
    x = 286,112,249.44/20,544.96
  6. Step 6: Final answer
    x = 13,926.15

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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.