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Finding the Fourth Proportional to 8,573.33, 12,860.91 and 2,728.58

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Solution

The fourth proportional to 8,573.33, 12,860.91 and 2,728.58 is: 4,093.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,573.33 : 12,860.91 = 2,728.58 : x
  2. Step 2: Convert to fraction form
    8,573.33/12,860.91 = 2,728.58/x
  3. Step 3: Cross multiply
    8,573.33x = 12,860.91 × 2,728.58
  4. Step 4: Simplify right side
    8,573.33x = 35,091,957.50
  5. Step 5: Solve for x
    x = 35,091,957.50/8,573.33
  6. Step 6: Final answer
    x = 4,093.16

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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.