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Finding the Fourth Proportional to 55,087.92, 76,021.92 and 29,937.42

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Solution

The fourth proportional to 55,087.92, 76,021.92 and 29,937.42 is: 41,313.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,087.92 : 76,021.92 = 29,937.42 : x
  2. Step 2: Convert to fraction form
    55,087.92/76,021.92 = 29,937.42/x
  3. Step 3: Cross multiply
    55,087.92x = 76,021.92 × 29,937.42
  4. Step 4: Simplify right side
    55,087.92x = 2,275,900,148.25
  5. Step 5: Solve for x
    x = 2,275,900,148.25/55,087.92
  6. Step 6: Final answer
    x = 41,313.96

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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.