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Finding the Fourth Proportional to 12,128.15, 16,736.59 and 7,095.35

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Solution

The fourth proportional to 12,128.15, 16,736.59 and 7,095.35 is: 9,791.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128.15 : 16,736.59 = 7,095.35 : x
  2. Step 2: Convert to fraction form
    12,128.15/16,736.59 = 7,095.35/x
  3. Step 3: Cross multiply
    12,128.15x = 16,736.59 × 7,095.35
  4. Step 4: Simplify right side
    12,128.15x = 118,751,880.17
  5. Step 5: Solve for x
    x = 118,751,880.17/12,128.15
  6. Step 6: Final answer
    x = 9,791.43

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