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Finding the Fourth Proportional to 40,405.94, 60,603.43 and 10,824.03

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Solution

The fourth proportional to 40,405.94, 60,603.43 and 10,824.03 is: 16,234.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,405.94 : 60,603.43 = 10,824.03 : x
  2. Step 2: Convert to fraction form
    40,405.94/60,603.43 = 10,824.03/x
  3. Step 3: Cross multiply
    40,405.94x = 60,603.43 × 10,824.03
  4. Step 4: Simplify right side
    40,405.94x = 655,973,041.41
  5. Step 5: Solve for x
    x = 655,973,041.41/40,405.94
  6. Step 6: Final answer
    x = 16,234.57

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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.