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Finding the Fourth Proportional to 18,340.65, 27,510.98 and 5,193.02

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Solution

The fourth proportional to 18,340.65, 27,510.98 and 5,193.02 is: 7,789.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,340.65 : 27,510.98 = 5,193.02 : x
  2. Step 2: Convert to fraction form
    18,340.65/27,510.98 = 5,193.02/x
  3. Step 3: Cross multiply
    18,340.65x = 27,510.98 × 5,193.02
  4. Step 4: Simplify right side
    18,340.65x = 142,865,172.77
  5. Step 5: Solve for x
    x = 142,865,172.77/18,340.65
  6. Step 6: Final answer
    x = 7,789.54

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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.