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Finding the Fourth Proportional to 9,580.26, 13,220.62 and 5,388.51

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Solution

The fourth proportional to 9,580.26, 13,220.62 and 5,388.51 is: 7,436.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,580.26 : 13,220.62 = 5,388.51 : x
  2. Step 2: Convert to fraction form
    9,580.26/13,220.62 = 5,388.51/x
  3. Step 3: Cross multiply
    9,580.26x = 13,220.62 × 5,388.51
  4. Step 4: Simplify right side
    9,580.26x = 71,239,443.08
  5. Step 5: Solve for x
    x = 71,239,443.08/9,580.26
  6. Step 6: Final answer
    x = 7,436.07

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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.