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Finding the Fourth Proportional to 29,619.80, 44,321.70 and 21,843.80

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Solution

The fourth proportional to 29,619.80, 44,321.70 and 21,843.80 is: 32,686.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,619.80 : 44,321.70 = 21,843.80 : x
  2. Step 2: Convert to fraction form
    29,619.80/44,321.70 = 21,843.80/x
  3. Step 3: Cross multiply
    29,619.80x = 44,321.70 × 21,843.80
  4. Step 4: Simplify right side
    29,619.80x = 968,154,350.46
  5. Step 5: Solve for x
    x = 968,154,350.46/29,619.80
  6. Step 6: Final answer
    x = 32,686.05

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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.