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Finding the Fourth Proportional to 1,184.36, 1,633.64 and 853.27

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Solution

The fourth proportional to 1,184.36, 1,633.64 and 853.27 is: 1,176.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.36 : 1,633.64 = 853.27 : x
  2. Step 2: Convert to fraction form
    1,184.36/1,633.64 = 853.27/x
  3. Step 3: Cross multiply
    1,184.36x = 1,633.64 × 853.27
  4. Step 4: Simplify right side
    1,184.36x = 1,393,927.65
  5. Step 5: Solve for x
    x = 1,393,927.65/1,184.36
  6. Step 6: Final answer
    x = 1,176.95

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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.