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Finding the Fourth Proportional to 9,872.03, 13,623.37 and 5,395.81

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Solution

The fourth proportional to 9,872.03, 13,623.37 and 5,395.81 is: 7,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,872.03 : 13,623.37 = 5,395.81 : x
  2. Step 2: Convert to fraction form
    9,872.03/13,623.37 = 5,395.81/x
  3. Step 3: Cross multiply
    9,872.03x = 13,623.37 × 5,395.81
  4. Step 4: Simplify right side
    9,872.03x = 73,509,116.08
  5. Step 5: Solve for x
    x = 73,509,116.08/9,872.03
  6. Step 6: Final answer
    x = 7,446.20

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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.