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Finding the Fourth Proportional to 2,361.70, 3,541.70 and 695.38

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Solution

The fourth proportional to 2,361.70, 3,541.70 and 695.38 is: 1,042.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,361.70 : 3,541.70 = 695.38 : x
  2. Step 2: Convert to fraction form
    2,361.70/3,541.70 = 695.38/x
  3. Step 3: Cross multiply
    2,361.70x = 3,541.70 × 695.38
  4. Step 4: Simplify right side
    2,361.70x = 2,462,827.35
  5. Step 5: Solve for x
    x = 2,462,827.35/2,361.70
  6. Step 6: Final answer
    x = 1,042.82

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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.