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Finding the Fourth Proportional to 4,858, 7,286.37 and 1,570.76

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Solution

The fourth proportional to 4,858, 7,286.37 and 1,570.76 is: 2,355.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,858 : 7,286.37 = 1,570.76 : x
  2. Step 2: Convert to fraction form
    4,858/7,286.37 = 1,570.76/x
  3. Step 3: Cross multiply
    4,858x = 7,286.37 × 1,570.76
  4. Step 4: Simplify right side
    4,858x = 11,445,138.54
  5. Step 5: Solve for x
    x = 11,445,138.54/4,858
  6. Step 6: Final answer
    x = 2,355.94

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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.