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Finding the Fourth Proportional to 19,199.44, 28,780.44 and 9,338.32

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Solution

The fourth proportional to 19,199.44, 28,780.44 and 9,338.32 is: 13,998.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,199.44 : 28,780.44 = 9,338.32 : x
  2. Step 2: Convert to fraction form
    19,199.44/28,780.44 = 9,338.32/x
  3. Step 3: Cross multiply
    19,199.44x = 28,780.44 × 9,338.32
  4. Step 4: Simplify right side
    19,199.44x = 268,760,958.46
  5. Step 5: Solve for x
    x = 268,760,958.46/19,199.44
  6. Step 6: Final answer
    x = 13,998.37

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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.