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Finding the Fourth Proportional to 40,446.99, 60,670.49 and 40,388.58

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Solution

The fourth proportional to 40,446.99, 60,670.49 and 40,388.58 is: 60,582.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,446.99 : 60,670.49 = 40,388.58 : x
  2. Step 2: Convert to fraction form
    40,446.99/60,670.49 = 40,388.58/x
  3. Step 3: Cross multiply
    40,446.99x = 60,670.49 × 40,388.58
  4. Step 4: Simplify right side
    40,446.99x = 2,450,394,737.06
  5. Step 5: Solve for x
    x = 2,450,394,737.06/40,446.99
  6. Step 6: Final answer
    x = 60,582.87

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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.