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Finding the Fourth Proportional to 15,661.39, 23,492.03 and 3,815.03

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Solution

The fourth proportional to 15,661.39, 23,492.03 and 3,815.03 is: 5,722.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,661.39 : 23,492.03 = 3,815.03 : x
  2. Step 2: Convert to fraction form
    15,661.39/23,492.03 = 3,815.03/x
  3. Step 3: Cross multiply
    15,661.39x = 23,492.03 × 3,815.03
  4. Step 4: Simplify right side
    15,661.39x = 89,622,662.68
  5. Step 5: Solve for x
    x = 89,622,662.68/15,661.39
  6. Step 6: Final answer
    x = 5,722.52

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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.