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Finding the Fourth Proportional to 1,348.08, 2,022.06 and 936

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Solution

The fourth proportional to 1,348.08, 2,022.06 and 936 is: 1,403.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.08 : 2,022.06 = 936 : x
  2. Step 2: Convert to fraction form
    1,348.08/2,022.06 = 936/x
  3. Step 3: Cross multiply
    1,348.08x = 2,022.06 × 936
  4. Step 4: Simplify right side
    1,348.08x = 1,892,648.16
  5. Step 5: Solve for x
    x = 1,892,648.16/1,348.08
  6. Step 6: Final answer
    x = 1,403.96

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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.