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Finding the Fourth Proportional to 17,642.88, 26,465.04 and 4,495.68

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Solution

The fourth proportional to 17,642.88, 26,465.04 and 4,495.68 is: 6,743.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,642.88 : 26,465.04 = 4,495.68 : x
  2. Step 2: Convert to fraction form
    17,642.88/26,465.04 = 4,495.68/x
  3. Step 3: Cross multiply
    17,642.88x = 26,465.04 × 4,495.68
  4. Step 4: Simplify right side
    17,642.88x = 118,978,351.03
  5. Step 5: Solve for x
    x = 118,978,351.03/17,642.88
  6. Step 6: Final answer
    x = 6,743.70

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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.