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Finding the Fourth Proportional to 22,474.80, 33,663.60 and 20,012.40

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Solution

The fourth proportional to 22,474.80, 33,663.60 and 20,012.40 is: 29,975.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,474.80 : 33,663.60 = 20,012.40 : x
  2. Step 2: Convert to fraction form
    22,474.80/33,663.60 = 20,012.40/x
  3. Step 3: Cross multiply
    22,474.80x = 33,663.60 × 20,012.40
  4. Step 4: Simplify right side
    22,474.80x = 673,689,428.64
  5. Step 5: Solve for x
    x = 673,689,428.64/22,474.80
  6. Step 6: Final answer
    x = 29,975.32

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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.