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Finding the Fourth Proportional to 3,389.36, 5,083.52 and 924.38

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Solution

The fourth proportional to 3,389.36, 5,083.52 and 924.38 is: 1,386.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.36 : 5,083.52 = 924.38 : x
  2. Step 2: Convert to fraction form
    3,389.36/5,083.52 = 924.38/x
  3. Step 3: Cross multiply
    3,389.36x = 5,083.52 × 924.38
  4. Step 4: Simplify right side
    3,389.36x = 4,699,078.80
  5. Step 5: Solve for x
    x = 4,699,078.80/3,389.36
  6. Step 6: Final answer
    x = 1,386.42

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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.