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Finding the Fourth Proportional to 3,358.21, 5,037.33 and 893.21

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Solution

The fourth proportional to 3,358.21, 5,037.33 and 893.21 is: 1,339.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,358.21 : 5,037.33 = 893.21 : x
  2. Step 2: Convert to fraction form
    3,358.21/5,037.33 = 893.21/x
  3. Step 3: Cross multiply
    3,358.21x = 5,037.33 × 893.21
  4. Step 4: Simplify right side
    3,358.21x = 4,499,409.47
  5. Step 5: Solve for x
    x = 4,499,409.47/3,358.21
  6. Step 6: Final answer
    x = 1,339.82

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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.