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Finding the Third Proportional to 2,216,643.75 and 4,775,234.25

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Solution

The third proportional to 2,216,643.75 and 4,775,234.25 is: 10,287,111.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216,643.75 : 4,775,234.25 = 4,775,234.25 : x
  2. Step 2: Convert to fraction form
    2,216,643.75/4,775,234.25 = 4,775,234.25/x
  3. Step 3: Cross multiply
    2,216,643.75x = 4,775,234.25 × 4,775,234.25
  4. Step 4: Simplify right side
    2,216,643.75x = 22,802,862,142,373.06
  5. Step 5: Solve for x
    x = 22,802,862,142,373.06/2,216,643.75
  6. Step 6: Final answer
    x = 10,287,111.83

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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.