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Finding the Fourth Proportional to 19,093.04, 28,640.04 and 5,242

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Solution

The fourth proportional to 19,093.04, 28,640.04 and 5,242 is: 7,863.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,093.04 : 28,640.04 = 5,242 : x
  2. Step 2: Convert to fraction form
    19,093.04/28,640.04 = 5,242/x
  3. Step 3: Cross multiply
    19,093.04x = 28,640.04 × 5,242
  4. Step 4: Simplify right side
    19,093.04x = 150,131,089.68
  5. Step 5: Solve for x
    x = 150,131,089.68/19,093.04
  6. Step 6: Final answer
    x = 7,863.13

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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.