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Finding the Fourth Proportional to 16,809, 25,196.40 and 6,953.64

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Solution

The fourth proportional to 16,809, 25,196.40 and 6,953.64 is: 10,423.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,809 : 25,196.40 = 6,953.64 : x
  2. Step 2: Convert to fraction form
    16,809/25,196.40 = 6,953.64/x
  3. Step 3: Cross multiply
    16,809x = 25,196.40 × 6,953.64
  4. Step 4: Simplify right side
    16,809x = 175,206,694.90
  5. Step 5: Solve for x
    x = 175,206,694.90/16,809
  6. Step 6: Final answer
    x = 10,423.39

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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.