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Finding the Third Proportional to 1,211,853.66 and 1,842,965.16

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Solution

The third proportional to 1,211,853.66 and 1,842,965.16 is: 2,802,748.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,853.66 : 1,842,965.16 = 1,842,965.16 : x
  2. Step 2: Convert to fraction form
    1,211,853.66/1,842,965.16 = 1,842,965.16/x
  3. Step 3: Cross multiply
    1,211,853.66x = 1,842,965.16 × 1,842,965.16
  4. Step 4: Simplify right side
    1,211,853.66x = 3,396,520,567,151.59
  5. Step 5: Solve for x
    x = 3,396,520,567,151.59/1,211,853.66
  6. Step 6: Final answer
    x = 2,802,748.13

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.