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Finding the Fourth Proportional to 16,955.36, 25,429.92 and 7,092

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Solution

The fourth proportional to 16,955.36, 25,429.92 and 7,092 is: 10,636.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,955.36 : 25,429.92 = 7,092 : x
  2. Step 2: Convert to fraction form
    16,955.36/25,429.92 = 7,092/x
  3. Step 3: Cross multiply
    16,955.36x = 25,429.92 × 7,092
  4. Step 4: Simplify right side
    16,955.36x = 180,348,992.64
  5. Step 5: Solve for x
    x = 180,348,992.64/16,955.36
  6. Step 6: Final answer
    x = 10,636.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.