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Finding the Fourth Proportional to 13,908.01, 20,863.84 and 7,334.44

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Solution

The fourth proportional to 13,908.01, 20,863.84 and 7,334.44 is: 11,002.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.01 : 20,863.84 = 7,334.44 : x
  2. Step 2: Convert to fraction form
    13,908.01/20,863.84 = 7,334.44/x
  3. Step 3: Cross multiply
    13,908.01x = 20,863.84 × 7,334.44
  4. Step 4: Simplify right side
    13,908.01x = 153,024,598.14
  5. Step 5: Solve for x
    x = 153,024,598.14/13,908.01
  6. Step 6: Final answer
    x = 11,002.62

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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.