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Finding the Third Proportional to 1,431,540.84 and 3,114,963.84

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Solution

The third proportional to 1,431,540.84 and 3,114,963.84 is: 6,778,011.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,540.84 : 3,114,963.84 = 3,114,963.84 : x
  2. Step 2: Convert to fraction form
    1,431,540.84/3,114,963.84 = 3,114,963.84/x
  3. Step 3: Cross multiply
    1,431,540.84x = 3,114,963.84 × 3,114,963.84
  4. Step 4: Simplify right side
    1,431,540.84x = 9,702,999,747,869.77
  5. Step 5: Solve for x
    x = 9,702,999,747,869.77/1,431,540.84
  6. Step 6: Final answer
    x = 6,778,011.11

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.