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Finding the Fourth Proportional to 17,850.40, 26,775.60 and 11,255.20

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Solution

The fourth proportional to 17,850.40, 26,775.60 and 11,255.20 is: 16,882.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,850.40 : 26,775.60 = 11,255.20 : x
  2. Step 2: Convert to fraction form
    17,850.40/26,775.60 = 11,255.20/x
  3. Step 3: Cross multiply
    17,850.40x = 26,775.60 × 11,255.20
  4. Step 4: Simplify right side
    17,850.40x = 301,364,733.12
  5. Step 5: Solve for x
    x = 301,364,733.12/17,850.40
  6. Step 6: Final answer
    x = 16,882.80

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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.