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Finding the Fourth Proportional to 3,669,989.45, 5,148,614.05 and 3,669,989.45

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Solution

The fourth proportional to 3,669,989.45, 5,148,614.05 and 3,669,989.45 is: 5,148,614.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669,989.45 : 5,148,614.05 = 3,669,989.45 : x
  2. Step 2: Convert to fraction form
    3,669,989.45/5,148,614.05 = 3,669,989.45/x
  3. Step 3: Cross multiply
    3,669,989.45x = 5,148,614.05 × 3,669,989.45
  4. Step 4: Simplify right side
    3,669,989.45x = 18,895,359,245,621.77
  5. Step 5: Solve for x
    x = 18,895,359,245,621.77/3,669,989.45
  6. Step 6: Final answer
    x = 5,148,614.05

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.