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Finding the Fourth Proportional to 1,706.84, 2,355.56 and 1,008.44

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Solution

The fourth proportional to 1,706.84, 2,355.56 and 1,008.44 is: 1,391.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,706.84 : 2,355.56 = 1,008.44 : x
  2. Step 2: Convert to fraction form
    1,706.84/2,355.56 = 1,008.44/x
  3. Step 3: Cross multiply
    1,706.84x = 2,355.56 × 1,008.44
  4. Step 4: Simplify right side
    1,706.84x = 2,375,440.93
  5. Step 5: Solve for x
    x = 2,375,440.93/1,706.84
  6. Step 6: Final answer
    x = 1,391.72

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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.