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Finding the Third Proportional to 3,153,111.75 and 6,859,809

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Solution

The third proportional to 3,153,111.75 and 6,859,809 is: 14,923,980.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153,111.75 : 6,859,809 = 6,859,809 : x
  2. Step 2: Convert to fraction form
    3,153,111.75/6,859,809 = 6,859,809/x
  3. Step 3: Cross multiply
    3,153,111.75x = 6,859,809 × 6,859,809
  4. Step 4: Simplify right side
    3,153,111.75x = 47,056,979,516,481
  5. Step 5: Solve for x
    x = 47,056,979,516,481/3,153,111.75
  6. Step 6: Final answer
    x = 14,923,980.89

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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.