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Finding the Fourth Proportional to 18,183.04, 25,064 and 16,657.61

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Solution

The fourth proportional to 18,183.04, 25,064 and 16,657.61 is: 22,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,183.04 : 25,064 = 16,657.61 : x
  2. Step 2: Convert to fraction form
    18,183.04/25,064 = 16,657.61/x
  3. Step 3: Cross multiply
    18,183.04x = 25,064 × 16,657.61
  4. Step 4: Simplify right side
    18,183.04x = 417,506,211.72
  5. Step 5: Solve for x
    x = 417,506,211.72/18,183.04
  6. Step 6: Final answer
    x = 22,961.30

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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.