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Finding the Fourth Proportional to 19,019.52, 28,503.81 and 10,695.42

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Solution

The fourth proportional to 19,019.52, 28,503.81 and 10,695.42 is: 16,028.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.52 : 28,503.81 = 10,695.42 : x
  2. Step 2: Convert to fraction form
    19,019.52/28,503.81 = 10,695.42/x
  3. Step 3: Cross multiply
    19,019.52x = 28,503.81 × 10,695.42
  4. Step 4: Simplify right side
    19,019.52x = 304,860,219.55
  5. Step 5: Solve for x
    x = 304,860,219.55/19,019.52
  6. Step 6: Final answer
    x = 16,028.81

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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.