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Finding the Fourth Proportional to 19,098.24, 28,648.74 and 7,993.74

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Solution

The fourth proportional to 19,098.24, 28,648.74 and 7,993.74 is: 11,991.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,098.24 : 28,648.74 = 7,993.74 : x
  2. Step 2: Convert to fraction form
    19,098.24/28,648.74 = 7,993.74/x
  3. Step 3: Cross multiply
    19,098.24x = 28,648.74 × 7,993.74
  4. Step 4: Simplify right side
    19,098.24x = 229,010,578.89
  5. Step 5: Solve for x
    x = 229,010,578.89/19,098.24
  6. Step 6: Final answer
    x = 11,991.19

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Similar ratio
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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.