Home / 18,611.22-25,676.16-10,649.18

Finding the Fourth Proportional to 18,611.22, 25,676.16 and 10,649.18

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Solution

The fourth proportional to 18,611.22, 25,676.16 and 10,649.18 is: 14,691.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,611.22 : 25,676.16 = 10,649.18 : x
  2. Step 2: Convert to fraction form
    18,611.22/25,676.16 = 10,649.18/x
  3. Step 3: Cross multiply
    18,611.22x = 25,676.16 × 10,649.18
  4. Step 4: Simplify right side
    18,611.22x = 273,430,049.55
  5. Step 5: Solve for x
    x = 273,430,049.55/18,611.22
  6. Step 6: Final answer
    x = 14,691.68

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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.