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Finding the Fourth Proportional to 18,150.98, 27,071.20 and 15,944.27

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Solution

The fourth proportional to 18,150.98, 27,071.20 and 15,944.27 is: 23,780.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,150.98 : 27,071.20 = 15,944.27 : x
  2. Step 2: Convert to fraction form
    18,150.98/27,071.20 = 15,944.27/x
  3. Step 3: Cross multiply
    18,150.98x = 27,071.20 × 15,944.27
  4. Step 4: Simplify right side
    18,150.98x = 431,630,386.67
  5. Step 5: Solve for x
    x = 431,630,386.67/18,150.98
  6. Step 6: Final answer
    x = 23,780.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.