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Finding the Fourth Proportional to 2,516.46, 3,774.63 and 785.04

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Solution

The fourth proportional to 2,516.46, 3,774.63 and 785.04 is: 1,177.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,516.46 : 3,774.63 = 785.04 : x
  2. Step 2: Convert to fraction form
    2,516.46/3,774.63 = 785.04/x
  3. Step 3: Cross multiply
    2,516.46x = 3,774.63 × 785.04
  4. Step 4: Simplify right side
    2,516.46x = 2,963,235.54
  5. Step 5: Solve for x
    x = 2,963,235.54/2,516.46
  6. Step 6: Final answer
    x = 1,177.54

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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.