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Finding the Fourth Proportional to 18,492.26, 25,455.21 and 16,130.30

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Solution

The fourth proportional to 18,492.26, 25,455.21 and 16,130.30 is: 22,203.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492.26 : 25,455.21 = 16,130.30 : x
  2. Step 2: Convert to fraction form
    18,492.26/25,455.21 = 16,130.30/x
  3. Step 3: Cross multiply
    18,492.26x = 25,455.21 × 16,130.30
  4. Step 4: Simplify right side
    18,492.26x = 410,600,173.86
  5. Step 5: Solve for x
    x = 410,600,173.86/18,492.26
  6. Step 6: Final answer
    x = 22,203.89

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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.