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Finding the Third Proportional to 1,991,448 and 4,273,224

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Solution

The third proportional to 1,991,448 and 4,273,224 is: 9,169,430.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,448 : 4,273,224 = 4,273,224 : x
  2. Step 2: Convert to fraction form
    1,991,448/4,273,224 = 4,273,224/x
  3. Step 3: Cross multiply
    1,991,448x = 4,273,224 × 4,273,224
  4. Step 4: Simplify right side
    1,991,448x = 18,260,443,354,176
  5. Step 5: Solve for x
    x = 18,260,443,354,176/1,991,448
  6. Step 6: Final answer
    x = 9,169,430.16

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.