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Finding the Fourth Proportional to 19,197.45, 28,794.29 and 6,715.17

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Solution

The fourth proportional to 19,197.45, 28,794.29 and 6,715.17 is: 10,072.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,197.45 : 28,794.29 = 6,715.17 : x
  2. Step 2: Convert to fraction form
    19,197.45/28,794.29 = 6,715.17/x
  3. Step 3: Cross multiply
    19,197.45x = 28,794.29 × 6,715.17
  4. Step 4: Simplify right side
    19,197.45x = 193,358,518.80
  5. Step 5: Solve for x
    x = 193,358,518.80/19,197.45
  6. Step 6: Final answer
    x = 10,072.09

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.