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Finding the Fourth Proportional to 22,012.96, 33,019.44 and 12,150.40

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Solution

The fourth proportional to 22,012.96, 33,019.44 and 12,150.40 is: 18,225.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,012.96 : 33,019.44 = 12,150.40 : x
  2. Step 2: Convert to fraction form
    22,012.96/33,019.44 = 12,150.40/x
  3. Step 3: Cross multiply
    22,012.96x = 33,019.44 × 12,150.40
  4. Step 4: Simplify right side
    22,012.96x = 401,199,403.78
  5. Step 5: Solve for x
    x = 401,199,403.78/22,012.96
  6. Step 6: Final answer
    x = 18,225.60

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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.