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Finding the Fourth Proportional to 3,669,969.70, 5,148,586.40 and 3,669,969.70

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Solution

The fourth proportional to 3,669,969.70, 5,148,586.40 and 3,669,969.70 is: 5,148,586.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669,969.70 : 5,148,586.40 = 3,669,969.70 : x
  2. Step 2: Convert to fraction form
    3,669,969.70/5,148,586.40 = 3,669,969.70/x
  3. Step 3: Cross multiply
    3,669,969.70x = 5,148,586.40 × 3,669,969.70
  4. Step 4: Simplify right side
    3,669,969.70x = 18,895,156,085,832.08
  5. Step 5: Solve for x
    x = 18,895,156,085,832.08/3,669,969.70
  6. Step 6: Final answer
    x = 5,148,586.40

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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.