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Finding the Fourth Proportional to 55,405.44, 76,462.36 and 33,888.44

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Solution

The fourth proportional to 55,405.44, 76,462.36 and 33,888.44 is: 46,767.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,405.44 : 76,462.36 = 33,888.44 : x
  2. Step 2: Convert to fraction form
    55,405.44/76,462.36 = 33,888.44/x
  3. Step 3: Cross multiply
    55,405.44x = 76,462.36 × 33,888.44
  4. Step 4: Simplify right side
    55,405.44x = 2,591,190,002.12
  5. Step 5: Solve for x
    x = 2,591,190,002.12/55,405.44
  6. Step 6: Final answer
    x = 46,767.79

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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.