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Finding the Fourth Proportional to 8,990.94, 13,483.98 and 3,442.62

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Solution

The fourth proportional to 8,990.94, 13,483.98 and 3,442.62 is: 5,163.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990.94 : 13,483.98 = 3,442.62 : x
  2. Step 2: Convert to fraction form
    8,990.94/13,483.98 = 3,442.62/x
  3. Step 3: Cross multiply
    8,990.94x = 13,483.98 × 3,442.62
  4. Step 4: Simplify right side
    8,990.94x = 46,420,219.23
  5. Step 5: Solve for x
    x = 46,420,219.23/8,990.94
  6. Step 6: Final answer
    x = 5,163.00

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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.