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Finding the Fourth Proportional to 4,745.94, 7,119.99 and 1,458.96

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Solution

The fourth proportional to 4,745.94, 7,119.99 and 1,458.96 is: 2,188.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,745.94 : 7,119.99 = 1,458.96 : x
  2. Step 2: Convert to fraction form
    4,745.94/7,119.99 = 1,458.96/x
  3. Step 3: Cross multiply
    4,745.94x = 7,119.99 × 1,458.96
  4. Step 4: Simplify right side
    4,745.94x = 10,387,780.61
  5. Step 5: Solve for x
    x = 10,387,780.61/4,745.94
  6. Step 6: Final answer
    x = 2,188.77

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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.