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Finding the Fourth Proportional to 17,317.13, 25,951.77 and 9,905.94

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Solution

The fourth proportional to 17,317.13, 25,951.77 and 9,905.94 is: 14,845.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,317.13 : 25,951.77 = 9,905.94 : x
  2. Step 2: Convert to fraction form
    17,317.13/25,951.77 = 9,905.94/x
  3. Step 3: Cross multiply
    17,317.13x = 25,951.77 × 9,905.94
  4. Step 4: Simplify right side
    17,317.13x = 257,076,676.51
  5. Step 5: Solve for x
    x = 257,076,676.51/17,317.13
  6. Step 6: Final answer
    x = 14,845.23

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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.