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Finding the Fourth Proportional to 55,471.75, 83,207.63 and 18,535.75

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Solution

The fourth proportional to 55,471.75, 83,207.63 and 18,535.75 is: 27,803.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,471.75 : 83,207.63 = 18,535.75 : x
  2. Step 2: Convert to fraction form
    55,471.75/83,207.63 = 18,535.75/x
  3. Step 3: Cross multiply
    55,471.75x = 83,207.63 × 18,535.75
  4. Step 4: Simplify right side
    55,471.75x = 1,542,315,827.77
  5. Step 5: Solve for x
    x = 1,542,315,827.77/55,471.75
  6. Step 6: Final answer
    x = 27,803.63

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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.