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Finding the Fourth Proportional to 1,600.05, 2,208.06 and 936.93

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Solution

The fourth proportional to 1,600.05, 2,208.06 and 936.93 is: 1,292.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,600.05 : 2,208.06 = 936.93 : x
  2. Step 2: Convert to fraction form
    1,600.05/2,208.06 = 936.93/x
  3. Step 3: Cross multiply
    1,600.05x = 2,208.06 × 936.93
  4. Step 4: Simplify right side
    1,600.05x = 2,068,797.66
  5. Step 5: Solve for x
    x = 2,068,797.66/1,600.05
  6. Step 6: Final answer
    x = 1,292.96

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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.