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Finding the Third Proportional to 3,991,011.75 and 9,047,497.50

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Solution

The third proportional to 3,991,011.75 and 9,047,497.50 is: 20,510,390.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,011.75 : 9,047,497.50 = 9,047,497.50 : x
  2. Step 2: Convert to fraction form
    3,991,011.75/9,047,497.50 = 9,047,497.50/x
  3. Step 3: Cross multiply
    3,991,011.75x = 9,047,497.50 × 9,047,497.50
  4. Step 4: Simplify right side
    3,991,011.75x = 81,857,211,012,506.25
  5. Step 5: Solve for x
    x = 81,857,211,012,506.25/3,991,011.75
  6. Step 6: Final answer
    x = 20,510,390.88

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Why These Related Problems?

These problems maintain the same ratio (2.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.