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Finding the Third Proportional to 1,179,138.50 and 1,870,119.50

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Solution

The third proportional to 1,179,138.50 and 1,870,119.50 is: 2,966,018.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,138.50 : 1,870,119.50 = 1,870,119.50 : x
  2. Step 2: Convert to fraction form
    1,179,138.50/1,870,119.50 = 1,870,119.50/x
  3. Step 3: Cross multiply
    1,179,138.50x = 1,870,119.50 × 1,870,119.50
  4. Step 4: Simplify right side
    1,179,138.50x = 3,497,346,944,280.25
  5. Step 5: Solve for x
    x = 3,497,346,944,280.25/1,179,138.50
  6. Step 6: Final answer
    x = 2,966,018.79

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.