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Finding the Fourth Proportional to 40,402.14, 60,602.05 and 10,819.99

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Solution

The fourth proportional to 40,402.14, 60,602.05 and 10,819.99 is: 16,229.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,402.14 : 60,602.05 = 10,819.99 : x
  2. Step 2: Convert to fraction form
    40,402.14/60,602.05 = 10,819.99/x
  3. Step 3: Cross multiply
    40,402.14x = 60,602.05 × 10,819.99
  4. Step 4: Simplify right side
    40,402.14x = 655,713,574.98
  5. Step 5: Solve for x
    x = 655,713,574.98/40,402.14
  6. Step 6: Final answer
    x = 16,229.67

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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.