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Finding the Fourth Proportional to 2,411.19, 3,617.07 and 767.16

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Solution

The fourth proportional to 2,411.19, 3,617.07 and 767.16 is: 1,150.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,411.19 : 3,617.07 = 767.16 : x
  2. Step 2: Convert to fraction form
    2,411.19/3,617.07 = 767.16/x
  3. Step 3: Cross multiply
    2,411.19x = 3,617.07 × 767.16
  4. Step 4: Simplify right side
    2,411.19x = 2,774,871.42
  5. Step 5: Solve for x
    x = 2,774,871.42/2,411.19
  6. Step 6: Final answer
    x = 1,150.83

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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.