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Finding the Fourth Proportional to 12,555.44, 17,325.92 and 6,890.06

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Solution

The fourth proportional to 12,555.44, 17,325.92 and 6,890.06 is: 9,507.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.44 : 17,325.92 = 6,890.06 : x
  2. Step 2: Convert to fraction form
    12,555.44/17,325.92 = 6,890.06/x
  3. Step 3: Cross multiply
    12,555.44x = 17,325.92 × 6,890.06
  4. Step 4: Simplify right side
    12,555.44x = 119,376,628.36
  5. Step 5: Solve for x
    x = 119,376,628.36/12,555.44
  6. Step 6: Final answer
    x = 9,507.96

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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.