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Finding the Fourth Proportional to 17,930.89, 26,899.98 and 6,245.02

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Solution

The fourth proportional to 17,930.89, 26,899.98 and 6,245.02 is: 9,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,930.89 : 26,899.98 = 6,245.02 : x
  2. Step 2: Convert to fraction form
    17,930.89/26,899.98 = 6,245.02/x
  3. Step 3: Cross multiply
    17,930.89x = 26,899.98 × 6,245.02
  4. Step 4: Simplify right side
    17,930.89x = 167,990,913.10
  5. Step 5: Solve for x
    x = 167,990,913.10/17,930.89
  6. Step 6: Final answer
    x = 9,368.80

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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.