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Finding the Fourth Proportional to 2,411.64, 3,617.58 and 851.46

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Solution

The fourth proportional to 2,411.64, 3,617.58 and 851.46 is: 1,277.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,411.64 : 3,617.58 = 851.46 : x
  2. Step 2: Convert to fraction form
    2,411.64/3,617.58 = 851.46/x
  3. Step 3: Cross multiply
    2,411.64x = 3,617.58 × 851.46
  4. Step 4: Simplify right side
    2,411.64x = 3,080,224.67
  5. Step 5: Solve for x
    x = 3,080,224.67/2,411.64
  6. Step 6: Final answer
    x = 1,277.23

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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.