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Finding the Fourth Proportional to 17,398.78, 26,112.02 and 6,308.64

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Solution

The fourth proportional to 17,398.78, 26,112.02 and 6,308.64 is: 9,467.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,398.78 : 26,112.02 = 6,308.64 : x
  2. Step 2: Convert to fraction form
    17,398.78/26,112.02 = 6,308.64/x
  3. Step 3: Cross multiply
    17,398.78x = 26,112.02 × 6,308.64
  4. Step 4: Simplify right side
    17,398.78x = 164,731,333.85
  5. Step 5: Solve for x
    x = 164,731,333.85/17,398.78
  6. Step 6: Final answer
    x = 9,467.98

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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.