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Finding the Fourth Proportional to 17,495.12, 26,213.48 and 7,619.60

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Solution

The fourth proportional to 17,495.12, 26,213.48 and 7,619.60 is: 11,416.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,495.12 : 26,213.48 = 7,619.60 : x
  2. Step 2: Convert to fraction form
    17,495.12/26,213.48 = 7,619.60/x
  3. Step 3: Cross multiply
    17,495.12x = 26,213.48 × 7,619.60
  4. Step 4: Simplify right side
    17,495.12x = 199,736,232.21
  5. Step 5: Solve for x
    x = 199,736,232.21/17,495.12
  6. Step 6: Final answer
    x = 11,416.68

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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.