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Finding the Fourth Proportional to 30,449.92, 45,675.86 and 8,263.24

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Solution

The fourth proportional to 30,449.92, 45,675.86 and 8,263.24 is: 12,395.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,449.92 : 45,675.86 = 8,263.24 : x
  2. Step 2: Convert to fraction form
    30,449.92/45,675.86 = 8,263.24/x
  3. Step 3: Cross multiply
    30,449.92x = 45,675.86 × 8,263.24
  4. Step 4: Simplify right side
    30,449.92x = 377,430,593.39
  5. Step 5: Solve for x
    x = 377,430,593.39/30,449.92
  6. Step 6: Final answer
    x = 12,395.13

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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.