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Finding the Fourth Proportional to 1,632.36, 2,252.67 and 886.31

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Solution

The fourth proportional to 1,632.36, 2,252.67 and 886.31 is: 1,223.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,632.36 : 2,252.67 = 886.31 : x
  2. Step 2: Convert to fraction form
    1,632.36/2,252.67 = 886.31/x
  3. Step 3: Cross multiply
    1,632.36x = 2,252.67 × 886.31
  4. Step 4: Simplify right side
    1,632.36x = 1,996,570.48
  5. Step 5: Solve for x
    x = 1,996,570.48/1,632.36
  6. Step 6: Final answer
    x = 1,223.12

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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.