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Finding the Fourth Proportional to 1,706.94, 2,355.58 and 960.91

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Solution

The fourth proportional to 1,706.94, 2,355.58 and 960.91 is: 1,326.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,706.94 : 2,355.58 = 960.91 : x
  2. Step 2: Convert to fraction form
    1,706.94/2,355.58 = 960.91/x
  3. Step 3: Cross multiply
    1,706.94x = 2,355.58 × 960.91
  4. Step 4: Simplify right side
    1,706.94x = 2,263,495.69
  5. Step 5: Solve for x
    x = 2,263,495.69/1,706.94
  6. Step 6: Final answer
    x = 1,326.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.