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Finding the Third Proportional to 859,357.13 and 1,890,317.81

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Solution

The third proportional to 859,357.13 and 1,890,317.81 is: 4,158,109.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,357.13 : 1,890,317.81 = 1,890,317.81 : x
  2. Step 2: Convert to fraction form
    859,357.13/1,890,317.81 = 1,890,317.81/x
  3. Step 3: Cross multiply
    859,357.13x = 1,890,317.81 × 1,890,317.81
  4. Step 4: Simplify right side
    859,357.13x = 3,573,301,432,254.79
  5. Step 5: Solve for x
    x = 3,573,301,432,254.79/859,357.13
  6. Step 6: Final answer
    x = 4,158,109.97

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.