Home / 37,145.96-55,720.26-12,186.60

Finding the Fourth Proportional to 37,145.96, 55,720.26 and 12,186.60

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Solution

The fourth proportional to 37,145.96, 55,720.26 and 12,186.60 is: 18,280.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,145.96 : 55,720.26 = 12,186.60 : x
  2. Step 2: Convert to fraction form
    37,145.96/55,720.26 = 12,186.60/x
  3. Step 3: Cross multiply
    37,145.96x = 55,720.26 × 12,186.60
  4. Step 4: Simplify right side
    37,145.96x = 679,040,520.52
  5. Step 5: Solve for x
    x = 679,040,520.52/37,145.96
  6. Step 6: Final answer
    x = 18,280.33

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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.