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Finding the Fourth Proportional to 13,797.85, 20,685.78 and 6,001.21

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Solution

The fourth proportional to 13,797.85, 20,685.78 and 6,001.21 is: 8,997.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,797.85 : 20,685.78 = 6,001.21 : x
  2. Step 2: Convert to fraction form
    13,797.85/20,685.78 = 6,001.21/x
  3. Step 3: Cross multiply
    13,797.85x = 20,685.78 × 6,001.21
  4. Step 4: Simplify right side
    13,797.85x = 124,139,709.79
  5. Step 5: Solve for x
    x = 124,139,709.79/13,797.85
  6. Step 6: Final answer
    x = 8,997.03

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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.