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Finding the Fourth Proportional to 936.84, 1,292.16 and 895.44

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Solution

The fourth proportional to 936.84, 1,292.16 and 895.44 is: 1,235.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    936.84 : 1,292.16 = 895.44 : x
  2. Step 2: Convert to fraction form
    936.84/1,292.16 = 895.44/x
  3. Step 3: Cross multiply
    936.84x = 1,292.16 × 895.44
  4. Step 4: Simplify right side
    936.84x = 1,157,051.75
  5. Step 5: Solve for x
    x = 1,157,051.75/936.84
  6. Step 6: Final answer
    x = 1,235.06

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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.