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Finding the Fourth Proportional to 9,711, 14,568.93 and 4,161.60

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Solution

The fourth proportional to 9,711, 14,568.93 and 4,161.60 is: 6,243.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,711 : 14,568.93 = 4,161.60 : x
  2. Step 2: Convert to fraction form
    9,711/14,568.93 = 4,161.60/x
  3. Step 3: Cross multiply
    9,711x = 14,568.93 × 4,161.60
  4. Step 4: Simplify right side
    9,711x = 60,630,059.09
  5. Step 5: Solve for x
    x = 60,630,059.09/9,711
  6. Step 6: Final answer
    x = 6,243.44

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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.