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Finding the Fourth Proportional to 36,910.80, 55,366.20 and 13,534.20

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Solution

The fourth proportional to 36,910.80, 55,366.20 and 13,534.20 is: 20,301.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,910.80 : 55,366.20 = 13,534.20 : x
  2. Step 2: Convert to fraction form
    36,910.80/55,366.20 = 13,534.20/x
  3. Step 3: Cross multiply
    36,910.80x = 55,366.20 × 13,534.20
  4. Step 4: Simplify right side
    36,910.80x = 749,337,224.04
  5. Step 5: Solve for x
    x = 749,337,224.04/36,910.80
  6. Step 6: Final answer
    x = 20,301.30

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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.