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Finding the Fourth Proportional to 20,532.44, 30,803.88 and 5,741.40

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Solution

The fourth proportional to 20,532.44, 30,803.88 and 5,741.40 is: 8,613.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,532.44 : 30,803.88 = 5,741.40 : x
  2. Step 2: Convert to fraction form
    20,532.44/30,803.88 = 5,741.40/x
  3. Step 3: Cross multiply
    20,532.44x = 30,803.88 × 5,741.40
  4. Step 4: Simplify right side
    20,532.44x = 176,857,396.63
  5. Step 5: Solve for x
    x = 176,857,396.63/20,532.44
  6. Step 6: Final answer
    x = 8,613.56

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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.