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Finding the Fourth Proportional to 8,361.51, 12,531.25 and 4,665.48

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Solution

The fourth proportional to 8,361.51, 12,531.25 and 4,665.48 is: 6,992.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,361.51 : 12,531.25 = 4,665.48 : x
  2. Step 2: Convert to fraction form
    8,361.51/12,531.25 = 4,665.48/x
  3. Step 3: Cross multiply
    8,361.51x = 12,531.25 × 4,665.48
  4. Step 4: Simplify right side
    8,361.51x = 58,464,296.25
  5. Step 5: Solve for x
    x = 58,464,296.25/8,361.51
  6. Step 6: Final answer
    x = 6,992.07

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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.