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Finding the Fourth Proportional to 7,153.65, 10,734.53 and 2,771.42

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Solution

The fourth proportional to 7,153.65, 10,734.53 and 2,771.42 is: 4,158.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153.65 : 10,734.53 = 2,771.42 : x
  2. Step 2: Convert to fraction form
    7,153.65/10,734.53 = 2,771.42/x
  3. Step 3: Cross multiply
    7,153.65x = 10,734.53 × 2,771.42
  4. Step 4: Simplify right side
    7,153.65x = 29,749,823.60
  5. Step 5: Solve for x
    x = 29,749,823.60/7,153.65
  6. Step 6: Final answer
    x = 4,158.69

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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.