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Finding the Fourth Proportional to 16,945, 25,415.48 and 4,466

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Solution

The fourth proportional to 16,945, 25,415.48 and 4,466 is: 6,698.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,945 : 25,415.48 = 4,466 : x
  2. Step 2: Convert to fraction form
    16,945/25,415.48 = 4,466/x
  3. Step 3: Cross multiply
    16,945x = 25,415.48 × 4,466
  4. Step 4: Simplify right side
    16,945x = 113,505,533.68
  5. Step 5: Solve for x
    x = 113,505,533.68/16,945
  6. Step 6: Final answer
    x = 6,698.47

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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.