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Finding the Fourth Proportional to 19,079.31, 28,620.24 and 6,600.54

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Solution

The fourth proportional to 19,079.31, 28,620.24 and 6,600.54 is: 9,901.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,079.31 : 28,620.24 = 6,600.54 : x
  2. Step 2: Convert to fraction form
    19,079.31/28,620.24 = 6,600.54/x
  3. Step 3: Cross multiply
    19,079.31x = 28,620.24 × 6,600.54
  4. Step 4: Simplify right side
    19,079.31x = 188,909,038.93
  5. Step 5: Solve for x
    x = 188,909,038.93/19,079.31
  6. Step 6: Final answer
    x = 9,901.25

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.