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Finding the Fourth Proportional to 55,855.72, 83,782.86 and 13,736.16

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Solution

The fourth proportional to 55,855.72, 83,782.86 and 13,736.16 is: 20,604.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,855.72 : 83,782.86 = 13,736.16 : x
  2. Step 2: Convert to fraction form
    55,855.72/83,782.86 = 13,736.16/x
  3. Step 3: Cross multiply
    55,855.72x = 83,782.86 × 13,736.16
  4. Step 4: Simplify right side
    55,855.72x = 1,150,854,770.22
  5. Step 5: Solve for x
    x = 1,150,854,770.22/55,855.72
  6. Step 6: Final answer
    x = 20,604.06

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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.