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Finding the Fourth Proportional to 17,407.90, 26,090.39 and 6,867.32

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Solution

The fourth proportional to 17,407.90, 26,090.39 and 6,867.32 is: 10,292.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,407.90 : 26,090.39 = 6,867.32 : x
  2. Step 2: Convert to fraction form
    17,407.90/26,090.39 = 6,867.32/x
  3. Step 3: Cross multiply
    17,407.90x = 26,090.39 × 6,867.32
  4. Step 4: Simplify right side
    17,407.90x = 179,170,905.14
  5. Step 5: Solve for x
    x = 179,170,905.14/17,407.90
  6. Step 6: Final answer
    x = 10,292.51

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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.