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Finding the Fourth Proportional to 29,548.80, 44,344.80 and 20,800.80

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Solution

The fourth proportional to 29,548.80, 44,344.80 and 20,800.80 is: 31,216.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,548.80 : 44,344.80 = 20,800.80 : x
  2. Step 2: Convert to fraction form
    29,548.80/44,344.80 = 20,800.80/x
  3. Step 3: Cross multiply
    29,548.80x = 44,344.80 × 20,800.80
  4. Step 4: Simplify right side
    29,548.80x = 922,407,315.84
  5. Step 5: Solve for x
    x = 922,407,315.84/29,548.80
  6. Step 6: Final answer
    x = 31,216.41

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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.