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Finding the Fourth Proportional to 57,998.79, 87,011.15 and 18,558.27

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Solution

The fourth proportional to 57,998.79, 87,011.15 and 18,558.27 is: 27,841.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,998.79 : 87,011.15 = 18,558.27 : x
  2. Step 2: Convert to fraction form
    57,998.79/87,011.15 = 18,558.27/x
  3. Step 3: Cross multiply
    57,998.79x = 87,011.15 × 18,558.27
  4. Step 4: Simplify right side
    57,998.79x = 1,614,776,321.92
  5. Step 5: Solve for x
    x = 1,614,776,321.92/57,998.79
  6. Step 6: Final answer
    x = 27,841.55

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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.