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Finding the Fourth Proportional to 7,043.45, 10,575.54 and 3,929.54

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Solution

The fourth proportional to 7,043.45, 10,575.54 and 3,929.54 is: 5,900.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,043.45 : 10,575.54 = 3,929.54 : x
  2. Step 2: Convert to fraction form
    7,043.45/10,575.54 = 3,929.54/x
  3. Step 3: Cross multiply
    7,043.45x = 10,575.54 × 3,929.54
  4. Step 4: Simplify right side
    7,043.45x = 41,556,954.57
  5. Step 5: Solve for x
    x = 41,556,954.57/7,043.45
  6. Step 6: Final answer
    x = 5,900.09

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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.