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Finding the Fourth Proportional to 18,226.26, 25,152.48 and 11,156.58

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Solution

The fourth proportional to 18,226.26, 25,152.48 and 11,156.58 is: 15,396.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,226.26 : 25,152.48 = 11,156.58 : x
  2. Step 2: Convert to fraction form
    18,226.26/25,152.48 = 11,156.58/x
  3. Step 3: Cross multiply
    18,226.26x = 25,152.48 × 11,156.58
  4. Step 4: Simplify right side
    18,226.26x = 280,615,655.32
  5. Step 5: Solve for x
    x = 280,615,655.32/18,226.26
  6. Step 6: Final answer
    x = 15,396.23

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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.