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Finding the Fourth Proportional to 3,084.34, 4,626.69 and 893.38

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Solution

The fourth proportional to 3,084.34, 4,626.69 and 893.38 is: 1,340.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,084.34 : 4,626.69 = 893.38 : x
  2. Step 2: Convert to fraction form
    3,084.34/4,626.69 = 893.38/x
  3. Step 3: Cross multiply
    3,084.34x = 4,626.69 × 893.38
  4. Step 4: Simplify right side
    3,084.34x = 4,133,392.31
  5. Step 5: Solve for x
    x = 4,133,392.31/3,084.34
  6. Step 6: Final answer
    x = 1,340.12

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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.