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Finding the Fourth Proportional to 18,704, 25,812.06 and 10,321.04

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Solution

The fourth proportional to 18,704, 25,812.06 and 10,321.04 is: 14,243.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704 : 25,812.06 = 10,321.04 : x
  2. Step 2: Convert to fraction form
    18,704/25,812.06 = 10,321.04/x
  3. Step 3: Cross multiply
    18,704x = 25,812.06 × 10,321.04
  4. Step 4: Simplify right side
    18,704x = 266,407,303.74
  5. Step 5: Solve for x
    x = 266,407,303.74/18,704
  6. Step 6: Final answer
    x = 14,243.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.