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Finding the Fourth Proportional to 30,660.44, 45,983.32 and 8,473.32

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Solution

The fourth proportional to 30,660.44, 45,983.32 and 8,473.32 is: 12,707.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,660.44 : 45,983.32 = 8,473.32 : x
  2. Step 2: Convert to fraction form
    30,660.44/45,983.32 = 8,473.32/x
  3. Step 3: Cross multiply
    30,660.44x = 45,983.32 × 8,473.32
  4. Step 4: Simplify right side
    30,660.44x = 389,631,385.02
  5. Step 5: Solve for x
    x = 389,631,385.02/30,660.44
  6. Step 6: Final answer
    x = 12,707.95

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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.