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Finding the Fourth Proportional to 23,788.80, 35,668.80 and 10,638.72

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Solution

The fourth proportional to 23,788.80, 35,668.80 and 10,638.72 is: 15,951.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,788.80 : 35,668.80 = 10,638.72 : x
  2. Step 2: Convert to fraction form
    23,788.80/35,668.80 = 10,638.72/x
  3. Step 3: Cross multiply
    23,788.80x = 35,668.80 × 10,638.72
  4. Step 4: Simplify right side
    23,788.80x = 379,470,375.94
  5. Step 5: Solve for x
    x = 379,470,375.94/23,788.80
  6. Step 6: Final answer
    x = 15,951.64

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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.