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Finding the Fourth Proportional to 17,303.68, 25,951.20 and 4,991.68

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Solution

The fourth proportional to 17,303.68, 25,951.20 and 4,991.68 is: 7,486.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,303.68 : 25,951.20 = 4,991.68 : x
  2. Step 2: Convert to fraction form
    17,303.68/25,951.20 = 4,991.68/x
  3. Step 3: Cross multiply
    17,303.68x = 25,951.20 × 4,991.68
  4. Step 4: Simplify right side
    17,303.68x = 129,540,086.02
  5. Step 5: Solve for x
    x = 129,540,086.02/17,303.68
  6. Step 6: Final answer
    x = 7,486.27

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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.