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Finding the Fourth Proportional to 17,745.12, 26,609.04 and 7,876.08

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Solution

The fourth proportional to 17,745.12, 26,609.04 and 7,876.08 is: 11,810.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,745.12 : 26,609.04 = 7,876.08 : x
  2. Step 2: Convert to fraction form
    17,745.12/26,609.04 = 7,876.08/x
  3. Step 3: Cross multiply
    17,745.12x = 26,609.04 × 7,876.08
  4. Step 4: Simplify right side
    17,745.12x = 209,574,927.76
  5. Step 5: Solve for x
    x = 209,574,927.76/17,745.12
  6. Step 6: Final answer
    x = 11,810.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.