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Finding the Third Proportional to 3,605,819.63 and 5,575,781.81

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Solution

The third proportional to 3,605,819.63 and 5,575,781.81 is: 8,621,990.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605,819.63 : 5,575,781.81 = 5,575,781.81 : x
  2. Step 2: Convert to fraction form
    3,605,819.63/5,575,781.81 = 5,575,781.81/x
  3. Step 3: Cross multiply
    3,605,819.63x = 5,575,781.81 × 5,575,781.81
  4. Step 4: Simplify right side
    3,605,819.63x = 31,089,342,820,605.79
  5. Step 5: Solve for x
    x = 31,089,342,820,605.79/3,605,819.63
  6. Step 6: Final answer
    x = 8,621,990.57

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.