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Finding the Fourth Proportional to 20,003.44, 29,984.64 and 7,521.16

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Solution

The fourth proportional to 20,003.44, 29,984.64 and 7,521.16 is: 11,274.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,003.44 : 29,984.64 = 7,521.16 : x
  2. Step 2: Convert to fraction form
    20,003.44/29,984.64 = 7,521.16/x
  3. Step 3: Cross multiply
    20,003.44x = 29,984.64 × 7,521.16
  4. Step 4: Simplify right side
    20,003.44x = 225,519,274.98
  5. Step 5: Solve for x
    x = 225,519,274.98/20,003.44
  6. Step 6: Final answer
    x = 11,274.02

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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.