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Finding the Fourth Proportional to 13,937.67, 20,903.67 and 4,074.30

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Solution

The fourth proportional to 13,937.67, 20,903.67 and 4,074.30 is: 6,110.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.67 : 20,903.67 = 4,074.30 : x
  2. Step 2: Convert to fraction form
    13,937.67/20,903.67 = 4,074.30/x
  3. Step 3: Cross multiply
    13,937.67x = 20,903.67 × 4,074.30
  4. Step 4: Simplify right side
    13,937.67x = 85,167,822.68
  5. Step 5: Solve for x
    x = 85,167,822.68/13,937.67
  6. Step 6: Final answer
    x = 6,110.62

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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.