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Finding the Fourth Proportional to 7,256.48, 10,876.08 and 4,172

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Solution

The fourth proportional to 7,256.48, 10,876.08 and 4,172 is: 6,253.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,256.48 : 10,876.08 = 4,172 : x
  2. Step 2: Convert to fraction form
    7,256.48/10,876.08 = 4,172/x
  3. Step 3: Cross multiply
    7,256.48x = 10,876.08 × 4,172
  4. Step 4: Simplify right side
    7,256.48x = 45,375,005.76
  5. Step 5: Solve for x
    x = 45,375,005.76/7,256.48
  6. Step 6: Final answer
    x = 6,253.03

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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.