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Finding the Third Proportional to 3,991,011 and 8,754,559.50

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Solution

The third proportional to 3,991,011 and 8,754,559.50 is: 19,203,733.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,011 : 8,754,559.50 = 8,754,559.50 : x
  2. Step 2: Convert to fraction form
    3,991,011/8,754,559.50 = 8,754,559.50/x
  3. Step 3: Cross multiply
    3,991,011x = 8,754,559.50 × 8,754,559.50
  4. Step 4: Simplify right side
    3,991,011x = 76,642,312,039,040.25
  5. Step 5: Solve for x
    x = 76,642,312,039,040.25/3,991,011
  6. Step 6: Final answer
    x = 19,203,733.60

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.