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Finding the Fourth Proportional to 12,208.87, 18,280.50 and 10,043.74

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Solution

The fourth proportional to 12,208.87, 18,280.50 and 10,043.74 is: 15,038.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.87 : 18,280.50 = 10,043.74 : x
  2. Step 2: Convert to fraction form
    12,208.87/18,280.50 = 10,043.74/x
  3. Step 3: Cross multiply
    12,208.87x = 18,280.50 × 10,043.74
  4. Step 4: Simplify right side
    12,208.87x = 183,604,589.07
  5. Step 5: Solve for x
    x = 183,604,589.07/12,208.87
  6. Step 6: Final answer
    x = 15,038.62

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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.