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Finding the Third Proportional to 1,790,587.90 and 3,883,978.48

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Solution

The third proportional to 1,790,587.90 and 3,883,978.48 is: 8,424,768.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790,587.90 : 3,883,978.48 = 3,883,978.48 : x
  2. Step 2: Convert to fraction form
    1,790,587.90/3,883,978.48 = 3,883,978.48/x
  3. Step 3: Cross multiply
    1,790,587.90x = 3,883,978.48 × 3,883,978.48
  4. Step 4: Simplify right side
    1,790,587.90x = 15,085,288,806,400.76
  5. Step 5: Solve for x
    x = 15,085,288,806,400.76/1,790,587.90
  6. Step 6: Final answer
    x = 8,424,768.66

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.