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Finding the Fourth Proportional to 44,244.80, 66,367.20 and 20,916.80

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Solution

The fourth proportional to 44,244.80, 66,367.20 and 20,916.80 is: 31,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,244.80 : 66,367.20 = 20,916.80 : x
  2. Step 2: Convert to fraction form
    44,244.80/66,367.20 = 20,916.80/x
  3. Step 3: Cross multiply
    44,244.80x = 66,367.20 × 20,916.80
  4. Step 4: Simplify right side
    44,244.80x = 1,388,189,448.96
  5. Step 5: Solve for x
    x = 1,388,189,448.96/44,244.80
  6. Step 6: Final answer
    x = 31,375.20

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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.