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Finding the Fourth Proportional to 17,663.55, 26,495.22 and 4,515.90

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Solution

The fourth proportional to 17,663.55, 26,495.22 and 4,515.90 is: 6,773.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,663.55 : 26,495.22 = 4,515.90 : x
  2. Step 2: Convert to fraction form
    17,663.55/26,495.22 = 4,515.90/x
  3. Step 3: Cross multiply
    17,663.55x = 26,495.22 × 4,515.90
  4. Step 4: Simplify right side
    17,663.55x = 119,649,764.00
  5. Step 5: Solve for x
    x = 119,649,764.00/17,663.55
  6. Step 6: Final answer
    x = 6,773.82

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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.