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Finding the Fourth Proportional to 13,506.56, 18,616.74 and 9,028.68

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Solution

The fourth proportional to 13,506.56, 18,616.74 and 9,028.68 is: 12,444.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.56 : 18,616.74 = 9,028.68 : x
  2. Step 2: Convert to fraction form
    13,506.56/18,616.74 = 9,028.68/x
  3. Step 3: Cross multiply
    13,506.56x = 18,616.74 × 9,028.68
  4. Step 4: Simplify right side
    13,506.56x = 168,084,495.02
  5. Step 5: Solve for x
    x = 168,084,495.02/13,506.56
  6. Step 6: Final answer
    x = 12,444.66

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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.