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Finding the Fourth Proportional to 16,990.56, 23,425.20 and 10,692

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Solution

The fourth proportional to 16,990.56, 23,425.20 and 10,692 is: 14,741.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,990.56 : 23,425.20 = 10,692 : x
  2. Step 2: Convert to fraction form
    16,990.56/23,425.20 = 10,692/x
  3. Step 3: Cross multiply
    16,990.56x = 23,425.20 × 10,692
  4. Step 4: Simplify right side
    16,990.56x = 250,462,238.40
  5. Step 5: Solve for x
    x = 250,462,238.40/16,990.56
  6. Step 6: Final answer
    x = 14,741.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.