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Finding the Fourth Proportional to 7,151.10, 10,725 and 3,451.02

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Solution

The fourth proportional to 7,151.10, 10,725 and 3,451.02 is: 5,175.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.10 : 10,725 = 3,451.02 : x
  2. Step 2: Convert to fraction form
    7,151.10/10,725 = 3,451.02/x
  3. Step 3: Cross multiply
    7,151.10x = 10,725 × 3,451.02
  4. Step 4: Simplify right side
    7,151.10x = 37,012,189.50
  5. Step 5: Solve for x
    x = 37,012,189.50/7,151.10
  6. Step 6: Final answer
    x = 5,175.73

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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.