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Finding the Fourth Proportional to 28,573.22, 42,858.02 and 8,850.18

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Solution

The fourth proportional to 28,573.22, 42,858.02 and 8,850.18 is: 13,274.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573.22 : 42,858.02 = 8,850.18 : x
  2. Step 2: Convert to fraction form
    28,573.22/42,858.02 = 8,850.18/x
  3. Step 3: Cross multiply
    28,573.22x = 42,858.02 × 8,850.18
  4. Step 4: Simplify right side
    28,573.22x = 379,301,191.44
  5. Step 5: Solve for x
    x = 379,301,191.44/28,573.22
  6. Step 6: Final answer
    x = 13,274.71

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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.