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Finding the Fourth Proportional to 19,157.56, 28,737.42 and 6,009.64

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Solution

The fourth proportional to 19,157.56, 28,737.42 and 6,009.64 is: 9,014.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157.56 : 28,737.42 = 6,009.64 : x
  2. Step 2: Convert to fraction form
    19,157.56/28,737.42 = 6,009.64/x
  3. Step 3: Cross multiply
    19,157.56x = 28,737.42 × 6,009.64
  4. Step 4: Simplify right side
    19,157.56x = 172,701,548.73
  5. Step 5: Solve for x
    x = 172,701,548.73/19,157.56
  6. Step 6: Final answer
    x = 9,014.80

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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.