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Finding the Fourth Proportional to 18,157.64, 27,236.46 and 15,876.68

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Solution

The fourth proportional to 18,157.64, 27,236.46 and 15,876.68 is: 23,815.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,157.64 : 27,236.46 = 15,876.68 : x
  2. Step 2: Convert to fraction form
    18,157.64/27,236.46 = 15,876.68/x
  3. Step 3: Cross multiply
    18,157.64x = 27,236.46 × 15,876.68
  4. Step 4: Simplify right side
    18,157.64x = 432,424,559.75
  5. Step 5: Solve for x
    x = 432,424,559.75/18,157.64
  6. Step 6: Final answer
    x = 23,815.02

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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.