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Finding the Fourth Proportional to 2,490.17, 3,735.66 and 846.54

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Solution

The fourth proportional to 2,490.17, 3,735.66 and 846.54 is: 1,269.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.17 : 3,735.66 = 846.54 : x
  2. Step 2: Convert to fraction form
    2,490.17/3,735.66 = 846.54/x
  3. Step 3: Cross multiply
    2,490.17x = 3,735.66 × 846.54
  4. Step 4: Simplify right side
    2,490.17x = 3,162,385.62
  5. Step 5: Solve for x
    x = 3,162,385.62/2,490.17
  6. Step 6: Final answer
    x = 1,269.95

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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.