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Finding the Fourth Proportional to 29,428.14, 40,610.85 and 16,855.32

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Solution

The fourth proportional to 29,428.14, 40,610.85 and 16,855.32 is: 23,260.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,428.14 : 40,610.85 = 16,855.32 : x
  2. Step 2: Convert to fraction form
    29,428.14/40,610.85 = 16,855.32/x
  3. Step 3: Cross multiply
    29,428.14x = 40,610.85 × 16,855.32
  4. Step 4: Simplify right side
    29,428.14x = 684,508,872.22
  5. Step 5: Solve for x
    x = 684,508,872.22/29,428.14
  6. Step 6: Final answer
    x = 23,260.35

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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.