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Finding the Fourth Proportional to 44,230.40, 66,364.80 and 20,844.80

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Solution

The fourth proportional to 44,230.40, 66,364.80 and 20,844.80 is: 31,276.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,230.40 : 66,364.80 = 20,844.80 : x
  2. Step 2: Convert to fraction form
    44,230.40/66,364.80 = 20,844.80/x
  3. Step 3: Cross multiply
    44,230.40x = 66,364.80 × 20,844.80
  4. Step 4: Simplify right side
    44,230.40x = 1,383,360,983.04
  5. Step 5: Solve for x
    x = 1,383,360,983.04/44,230.40
  6. Step 6: Final answer
    x = 31,276.25

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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.