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Finding the Fourth Proportional to 28,571.67, 42,848.01 and 9,851.24

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Solution

The fourth proportional to 28,571.67, 42,848.01 and 9,851.24 is: 14,773.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,571.67 : 42,848.01 = 9,851.24 : x
  2. Step 2: Convert to fraction form
    28,571.67/42,848.01 = 9,851.24/x
  3. Step 3: Cross multiply
    28,571.67x = 42,848.01 × 9,851.24
  4. Step 4: Simplify right side
    28,571.67x = 422,106,137.15
  5. Step 5: Solve for x
    x = 422,106,137.15/28,571.67
  6. Step 6: Final answer
    x = 14,773.59

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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.