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Finding the Fourth Proportional to 13,333.70, 18,401.34 and 7,365.34

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Solution

The fourth proportional to 13,333.70, 18,401.34 and 7,365.34 is: 10,164.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.70 : 18,401.34 = 7,365.34 : x
  2. Step 2: Convert to fraction form
    13,333.70/18,401.34 = 7,365.34/x
  3. Step 3: Cross multiply
    13,333.70x = 18,401.34 × 7,365.34
  4. Step 4: Simplify right side
    13,333.70x = 135,532,125.56
  5. Step 5: Solve for x
    x = 135,532,125.56/13,333.70
  6. Step 6: Final answer
    x = 10,164.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.