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Finding the Third Proportional to 9,990,572.91 and 21,522,893.48

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Solution

The third proportional to 9,990,572.91 and 21,522,893.48 is: 46,367,205.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990,572.91 : 21,522,893.48 = 21,522,893.48 : x
  2. Step 2: Convert to fraction form
    9,990,572.91/21,522,893.48 = 21,522,893.48/x
  3. Step 3: Cross multiply
    9,990,572.91x = 21,522,893.48 × 21,522,893.48
  4. Step 4: Simplify right side
    9,990,572.91x = 463,234,943,939,751.81
  5. Step 5: Solve for x
    x = 463,234,943,939,751.81/9,990,572.91
  6. Step 6: Final answer
    x = 46,367,205.19

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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.