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Finding the Fourth Proportional to 30,449.73, 45,669.21 and 8,264.84

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Solution

The fourth proportional to 30,449.73, 45,669.21 and 8,264.84 is: 12,395.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,449.73 : 45,669.21 = 8,264.84 : x
  2. Step 2: Convert to fraction form
    30,449.73/45,669.21 = 8,264.84/x
  3. Step 3: Cross multiply
    30,449.73x = 45,669.21 × 8,264.84
  4. Step 4: Simplify right side
    30,449.73x = 377,448,713.58
  5. Step 5: Solve for x
    x = 377,448,713.58/30,449.73
  6. Step 6: Final answer
    x = 12,395.80

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1.5x scale

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.