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Finding the Fourth Proportional to 16,978.29, 25,467.41 and 6,448.29

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Solution

The fourth proportional to 16,978.29, 25,467.41 and 6,448.29 is: 9,672.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,978.29 : 25,467.41 = 6,448.29 : x
  2. Step 2: Convert to fraction form
    16,978.29/25,467.41 = 6,448.29/x
  3. Step 3: Cross multiply
    16,978.29x = 25,467.41 × 6,448.29
  4. Step 4: Simplify right side
    16,978.29x = 164,221,261.35
  5. Step 5: Solve for x
    x = 164,221,261.35/16,978.29
  6. Step 6: Final answer
    x = 9,672.43

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1.5x scale

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.