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Finding the Fourth Proportional to 55,651.91, 83,485.67 and 18,214.92

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Solution

The fourth proportional to 55,651.91, 83,485.67 and 18,214.92 is: 27,324.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,651.91 : 83,485.67 = 18,214.92 : x
  2. Step 2: Convert to fraction form
    55,651.91/83,485.67 = 18,214.92/x
  3. Step 3: Cross multiply
    55,651.91x = 83,485.67 × 18,214.92
  4. Step 4: Simplify right side
    55,651.91x = 1,520,684,709.12
  5. Step 5: Solve for x
    x = 1,520,684,709.12/55,651.91
  6. Step 6: Final answer
    x = 27,324.94

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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.