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Finding the Fourth Proportional to 20,504.88, 30,757.32 and 14,672.88

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Solution

The fourth proportional to 20,504.88, 30,757.32 and 14,672.88 is: 22,009.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.88 : 30,757.32 = 14,672.88 : x
  2. Step 2: Convert to fraction form
    20,504.88/30,757.32 = 14,672.88/x
  3. Step 3: Cross multiply
    20,504.88x = 30,757.32 × 14,672.88
  4. Step 4: Simplify right side
    20,504.88x = 451,298,465.48
  5. Step 5: Solve for x
    x = 451,298,465.48/20,504.88
  6. Step 6: Final answer
    x = 22,009.32

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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.