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Finding the Fourth Proportional to 17,629.20, 26,443.80 and 16,851.60

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Solution

The fourth proportional to 17,629.20, 26,443.80 and 16,851.60 is: 25,277.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,629.20 : 26,443.80 = 16,851.60 : x
  2. Step 2: Convert to fraction form
    17,629.20/26,443.80 = 16,851.60/x
  3. Step 3: Cross multiply
    17,629.20x = 26,443.80 × 16,851.60
  4. Step 4: Simplify right side
    17,629.20x = 445,620,340.08
  5. Step 5: Solve for x
    x = 445,620,340.08/17,629.20
  6. Step 6: Final answer
    x = 25,277.40

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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.