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Finding the Fourth Proportional to 17,407.29, 26,119.94 and 8,642.01

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Solution

The fourth proportional to 17,407.29, 26,119.94 and 8,642.01 is: 12,967.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,407.29 : 26,119.94 = 8,642.01 : x
  2. Step 2: Convert to fraction form
    17,407.29/26,119.94 = 8,642.01/x
  3. Step 3: Cross multiply
    17,407.29x = 26,119.94 × 8,642.01
  4. Step 4: Simplify right side
    17,407.29x = 225,728,739.47
  5. Step 5: Solve for x
    x = 225,728,739.47/17,407.29
  6. Step 6: Final answer
    x = 12,967.48

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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.