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Finding the Fourth Proportional to 18,057.76, 24,919.72 and 10,099.80

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Solution

The fourth proportional to 18,057.76, 24,919.72 and 10,099.80 is: 13,937.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,057.76 : 24,919.72 = 10,099.80 : x
  2. Step 2: Convert to fraction form
    18,057.76/24,919.72 = 10,099.80/x
  3. Step 3: Cross multiply
    18,057.76x = 24,919.72 × 10,099.80
  4. Step 4: Simplify right side
    18,057.76x = 251,684,188.06
  5. Step 5: Solve for x
    x = 251,684,188.06/18,057.76
  6. Step 6: Final answer
    x = 13,937.73

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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.