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Finding the Fourth Proportional to 3,260.36, 4,866.81 and 3,019.72

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Solution

The fourth proportional to 3,260.36, 4,866.81 and 3,019.72 is: 4,507.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.36 : 4,866.81 = 3,019.72 : x
  2. Step 2: Convert to fraction form
    3,260.36/4,866.81 = 3,019.72/x
  3. Step 3: Cross multiply
    3,260.36x = 4,866.81 × 3,019.72
  4. Step 4: Simplify right side
    3,260.36x = 14,696,403.49
  5. Step 5: Solve for x
    x = 14,696,403.49/3,260.36
  6. Step 6: Final answer
    x = 4,507.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.