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Finding the Third Proportional to 1,939,443.75 and 3,069,505.13

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Solution

The third proportional to 1,939,443.75 and 3,069,505.13 is: 4,858,022.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,443.75 : 3,069,505.13 = 3,069,505.13 : x
  2. Step 2: Convert to fraction form
    1,939,443.75/3,069,505.13 = 3,069,505.13/x
  3. Step 3: Cross multiply
    1,939,443.75x = 3,069,505.13 × 3,069,505.13
  4. Step 4: Simplify right side
    1,939,443.75x = 9,421,861,712,401.27
  5. Step 5: Solve for x
    x = 9,421,861,712,401.27/1,939,443.75
  6. Step 6: Final answer
    x = 4,858,022.67

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.