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Finding the Fourth Proportional to 19,812.53, 29,718.83 and 6,674.13

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Solution

The fourth proportional to 19,812.53, 29,718.83 and 6,674.13 is: 10,011.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.53 : 29,718.83 = 6,674.13 : x
  2. Step 2: Convert to fraction form
    19,812.53/29,718.83 = 6,674.13/x
  3. Step 3: Cross multiply
    19,812.53x = 29,718.83 × 6,674.13
  4. Step 4: Simplify right side
    19,812.53x = 198,347,351.55
  5. Step 5: Solve for x
    x = 198,347,351.55/19,812.53
  6. Step 6: Final answer
    x = 10,011.21

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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.