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Finding the Fourth Proportional to 14,528.93, 21,790.16 and 5,761.49

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Solution

The fourth proportional to 14,528.93, 21,790.16 and 5,761.49 is: 8,640.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,528.93 : 21,790.16 = 5,761.49 : x
  2. Step 2: Convert to fraction form
    14,528.93/21,790.16 = 5,761.49/x
  3. Step 3: Cross multiply
    14,528.93x = 21,790.16 × 5,761.49
  4. Step 4: Simplify right side
    14,528.93x = 125,543,760.13
  5. Step 5: Solve for x
    x = 125,543,760.13/14,528.93
  6. Step 6: Final answer
    x = 8,640.95

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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.