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Finding the Fourth Proportional to 12,395.64, 18,588.60 and 4,998.24

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Solution

The fourth proportional to 12,395.64, 18,588.60 and 4,998.24 is: 7,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,395.64 : 18,588.60 = 4,998.24 : x
  2. Step 2: Convert to fraction form
    12,395.64/18,588.60 = 4,998.24/x
  3. Step 3: Cross multiply
    12,395.64x = 18,588.60 × 4,998.24
  4. Step 4: Simplify right side
    12,395.64x = 92,910,284.06
  5. Step 5: Solve for x
    x = 92,910,284.06/12,395.64
  6. Step 6: Final answer
    x = 7,495.40

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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.