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Finding the Fourth Proportional to 20,446.48, 30,672.24 and 7,300.24

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Solution

The fourth proportional to 20,446.48, 30,672.24 and 7,300.24 is: 10,951.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.48 : 30,672.24 = 7,300.24 : x
  2. Step 2: Convert to fraction form
    20,446.48/30,672.24 = 7,300.24/x
  3. Step 3: Cross multiply
    20,446.48x = 30,672.24 × 7,300.24
  4. Step 4: Simplify right side
    20,446.48x = 223,914,713.34
  5. Step 5: Solve for x
    x = 223,914,713.34/20,446.48
  6. Step 6: Final answer
    x = 10,951.26

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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.