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Finding the Fourth Proportional to 20,414.88, 30,597.72 and 10,548.84

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Solution

The fourth proportional to 20,414.88, 30,597.72 and 10,548.84 is: 15,810.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414.88 : 30,597.72 = 10,548.84 : x
  2. Step 2: Convert to fraction form
    20,414.88/30,597.72 = 10,548.84/x
  3. Step 3: Cross multiply
    20,414.88x = 30,597.72 × 10,548.84
  4. Step 4: Simplify right side
    20,414.88x = 322,770,452.64
  5. Step 5: Solve for x
    x = 322,770,452.64/20,414.88
  6. Step 6: Final answer
    x = 15,810.55

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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.