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Finding the Fourth Proportional to 15,361.39, 23,041.92 and 7,039.04

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Solution

The fourth proportional to 15,361.39, 23,041.92 and 7,039.04 is: 10,558.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,361.39 : 23,041.92 = 7,039.04 : x
  2. Step 2: Convert to fraction form
    15,361.39/23,041.92 = 7,039.04/x
  3. Step 3: Cross multiply
    15,361.39x = 23,041.92 × 7,039.04
  4. Step 4: Simplify right side
    15,361.39x = 162,192,996.56
  5. Step 5: Solve for x
    x = 162,192,996.56/15,361.39
  6. Step 6: Final answer
    x = 10,558.48

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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.