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Finding the Fourth Proportional to 4,985.87, 7,480.97 and 2,674.67

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Solution

The fourth proportional to 4,985.87, 7,480.97 and 2,674.67 is: 4,013.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.87 : 7,480.97 = 2,674.67 : x
  2. Step 2: Convert to fraction form
    4,985.87/7,480.97 = 2,674.67/x
  3. Step 3: Cross multiply
    4,985.87x = 7,480.97 × 2,674.67
  4. Step 4: Simplify right side
    4,985.87x = 20,009,112.66
  5. Step 5: Solve for x
    x = 20,009,112.66/4,985.87
  6. Step 6: Final answer
    x = 4,013.16

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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.