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Finding the Fourth Proportional to 18,650.55, 25,737.78 and 10,267.05

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Solution

The fourth proportional to 18,650.55, 25,737.78 and 10,267.05 is: 14,168.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650.55 : 25,737.78 = 10,267.05 : x
  2. Step 2: Convert to fraction form
    18,650.55/25,737.78 = 10,267.05/x
  3. Step 3: Cross multiply
    18,650.55x = 25,737.78 × 10,267.05
  4. Step 4: Simplify right side
    18,650.55x = 264,251,074.15
  5. Step 5: Solve for x
    x = 264,251,074.15/18,650.55
  6. Step 6: Final answer
    x = 14,168.54

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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.