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Finding the Fourth Proportional to 13,800.67, 20,701.34 and 5,035.58

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Solution

The fourth proportional to 13,800.67, 20,701.34 and 5,035.58 is: 7,553.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800.67 : 20,701.34 = 5,035.58 : x
  2. Step 2: Convert to fraction form
    13,800.67/20,701.34 = 5,035.58/x
  3. Step 3: Cross multiply
    13,800.67x = 20,701.34 × 5,035.58
  4. Step 4: Simplify right side
    13,800.67x = 104,243,189.33
  5. Step 5: Solve for x
    x = 104,243,189.33/13,800.67
  6. Step 6: Final answer
    x = 7,553.49

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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.