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Finding the Fourth Proportional to 4,881.33, 7,313.49 and 3,913.38

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Solution

The fourth proportional to 4,881.33, 7,313.49 and 3,913.38 is: 5,863.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,881.33 : 7,313.49 = 3,913.38 : x
  2. Step 2: Convert to fraction form
    4,881.33/7,313.49 = 3,913.38/x
  3. Step 3: Cross multiply
    4,881.33x = 7,313.49 × 3,913.38
  4. Step 4: Simplify right side
    4,881.33x = 28,620,465.50
  5. Step 5: Solve for x
    x = 28,620,465.50/4,881.33
  6. Step 6: Final answer
    x = 5,863.25

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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.