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Finding the Fourth Proportional to 40,442.99, 60,664.64 and 12,362.94

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Solution

The fourth proportional to 40,442.99, 60,664.64 and 12,362.94 is: 18,544.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,442.99 : 60,664.64 = 12,362.94 : x
  2. Step 2: Convert to fraction form
    40,442.99/60,664.64 = 12,362.94/x
  3. Step 3: Cross multiply
    40,442.99x = 60,664.64 × 12,362.94
  4. Step 4: Simplify right side
    40,442.99x = 749,993,304.44
  5. Step 5: Solve for x
    x = 749,993,304.44/40,442.99
  6. Step 6: Final answer
    x = 18,544.46

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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.