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Finding the Fourth Proportional to 7,130.50, 10,699.83 and 3,843.52

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Solution

The fourth proportional to 7,130.50, 10,699.83 and 3,843.52 is: 5,767.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.50 : 10,699.83 = 3,843.52 : x
  2. Step 2: Convert to fraction form
    7,130.50/10,699.83 = 3,843.52/x
  3. Step 3: Cross multiply
    7,130.50x = 10,699.83 × 3,843.52
  4. Step 4: Simplify right side
    7,130.50x = 41,124,983.85
  5. Step 5: Solve for x
    x = 41,124,983.85/7,130.50
  6. Step 6: Final answer
    x = 5,767.48

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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.