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Finding the Fourth Proportional to 15,924.19, 23,881.02 and 5,391.37

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Solution

The fourth proportional to 15,924.19, 23,881.02 and 5,391.37 is: 8,085.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,924.19 : 23,881.02 = 5,391.37 : x
  2. Step 2: Convert to fraction form
    15,924.19/23,881.02 = 5,391.37/x
  3. Step 3: Cross multiply
    15,924.19x = 23,881.02 × 5,391.37
  4. Step 4: Simplify right side
    15,924.19x = 128,751,414.80
  5. Step 5: Solve for x
    x = 128,751,414.80/15,924.19
  6. Step 6: Final answer
    x = 8,085.27

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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.