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Finding the Fourth Proportional to 2,607.36, 3,911.09 and 852.37

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Solution

The fourth proportional to 2,607.36, 3,911.09 and 852.37 is: 1,278.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,607.36 : 3,911.09 = 852.37 : x
  2. Step 2: Convert to fraction form
    2,607.36/3,911.09 = 852.37/x
  3. Step 3: Cross multiply
    2,607.36x = 3,911.09 × 852.37
  4. Step 4: Simplify right side
    2,607.36x = 3,333,695.78
  5. Step 5: Solve for x
    x = 3,333,695.78/2,607.36
  6. Step 6: Final answer
    x = 1,278.57

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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.