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Finding the Fourth Proportional to 9,172.83, 13,751.15 and 3,975.87

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Solution

The fourth proportional to 9,172.83, 13,751.15 and 3,975.87 is: 5,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.83 : 13,751.15 = 3,975.87 : x
  2. Step 2: Convert to fraction form
    9,172.83/13,751.15 = 3,975.87/x
  3. Step 3: Cross multiply
    9,172.83x = 13,751.15 × 3,975.87
  4. Step 4: Simplify right side
    9,172.83x = 54,672,784.75
  5. Step 5: Solve for x
    x = 54,672,784.75/9,172.83
  6. Step 6: Final answer
    x = 5,960.30

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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.