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Finding the Fourth Proportional to 28,847.80, 43,271.70 and 17,824.60

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Solution

The fourth proportional to 28,847.80, 43,271.70 and 17,824.60 is: 26,736.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,847.80 : 43,271.70 = 17,824.60 : x
  2. Step 2: Convert to fraction form
    28,847.80/43,271.70 = 17,824.60/x
  3. Step 3: Cross multiply
    28,847.80x = 43,271.70 × 17,824.60
  4. Step 4: Simplify right side
    28,847.80x = 771,300,743.82
  5. Step 5: Solve for x
    x = 771,300,743.82/28,847.80
  6. Step 6: Final answer
    x = 26,736.90

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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.