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Finding the Fourth Proportional to 19,272.15, 28,903.14 and 8,173.08

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Solution

The fourth proportional to 19,272.15, 28,903.14 and 8,173.08 is: 12,257.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,272.15 : 28,903.14 = 8,173.08 : x
  2. Step 2: Convert to fraction form
    19,272.15/28,903.14 = 8,173.08/x
  3. Step 3: Cross multiply
    19,272.15x = 28,903.14 × 8,173.08
  4. Step 4: Simplify right side
    19,272.15x = 236,227,675.47
  5. Step 5: Solve for x
    x = 236,227,675.47/19,272.15
  6. Step 6: Final answer
    x = 12,257.46

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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.