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Finding the Third Proportional to 1,477,678.50 and 3,191,121

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Solution

The third proportional to 1,477,678.50 and 3,191,121 is: 6,891,386.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477,678.50 : 3,191,121 = 3,191,121 : x
  2. Step 2: Convert to fraction form
    1,477,678.50/3,191,121 = 3,191,121/x
  3. Step 3: Cross multiply
    1,477,678.50x = 3,191,121 × 3,191,121
  4. Step 4: Simplify right side
    1,477,678.50x = 10,183,253,236,641
  5. Step 5: Solve for x
    x = 10,183,253,236,641/1,477,678.50
  6. Step 6: Final answer
    x = 6,891,386.21

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.