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Finding the Fourth Proportional to 35,616, 53,424.72 and 10,992

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Solution

The fourth proportional to 35,616, 53,424.72 and 10,992 is: 16,488.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,616 : 53,424.72 = 10,992 : x
  2. Step 2: Convert to fraction form
    35,616/53,424.72 = 10,992/x
  3. Step 3: Cross multiply
    35,616x = 53,424.72 × 10,992
  4. Step 4: Simplify right side
    35,616x = 587,244,522.24
  5. Step 5: Solve for x
    x = 587,244,522.24/35,616
  6. Step 6: Final answer
    x = 16,488.22

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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.