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Finding the Fourth Proportional to 28,433.41, 42,562.63 and 18,551.41

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Solution

The fourth proportional to 28,433.41, 42,562.63 and 18,551.41 is: 27,770.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,433.41 : 42,562.63 = 18,551.41 : x
  2. Step 2: Convert to fraction form
    28,433.41/42,562.63 = 18,551.41/x
  3. Step 3: Cross multiply
    28,433.41x = 42,562.63 × 18,551.41
  4. Step 4: Simplify right side
    28,433.41x = 789,596,799.81
  5. Step 5: Solve for x
    x = 789,596,799.81/28,433.41
  6. Step 6: Final answer
    x = 27,770.04

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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.