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Finding the Fourth Proportional to 12,684.39, 17,504.28 and 7,095.39

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Solution

The fourth proportional to 12,684.39, 17,504.28 and 7,095.39 is: 9,791.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,684.39 : 17,504.28 = 7,095.39 : x
  2. Step 2: Convert to fraction form
    12,684.39/17,504.28 = 7,095.39/x
  3. Step 3: Cross multiply
    12,684.39x = 17,504.28 × 7,095.39
  4. Step 4: Simplify right side
    12,684.39x = 124,199,693.27
  5. Step 5: Solve for x
    x = 124,199,693.27/12,684.39
  6. Step 6: Final answer
    x = 9,791.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.