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Finding the Third Proportional to 1,908,869.63 and 4,090,942.13

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Solution

The third proportional to 1,908,869.63 and 4,090,942.13 is: 8,767,391.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908,869.63 : 4,090,942.13 = 4,090,942.13 : x
  2. Step 2: Convert to fraction form
    1,908,869.63/4,090,942.13 = 4,090,942.13/x
  3. Step 3: Cross multiply
    1,908,869.63x = 4,090,942.13 × 4,090,942.13
  4. Step 4: Simplify right side
    1,908,869.63x = 16,735,807,470,099.52
  5. Step 5: Solve for x
    x = 16,735,807,470,099.52/1,908,869.63
  6. Step 6: Final answer
    x = 8,767,391.58

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.