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Finding the Fourth Proportional to 19,302.10, 28,949.64 and 5,790.49

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Solution

The fourth proportional to 19,302.10, 28,949.64 and 5,790.49 is: 8,684.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,302.10 : 28,949.64 = 5,790.49 : x
  2. Step 2: Convert to fraction form
    19,302.10/28,949.64 = 5,790.49/x
  3. Step 3: Cross multiply
    19,302.10x = 28,949.64 × 5,790.49
  4. Step 4: Simplify right side
    19,302.10x = 167,632,600.92
  5. Step 5: Solve for x
    x = 167,632,600.92/19,302.10
  6. Step 6: Final answer
    x = 8,684.68

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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.