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Finding the Third Proportional to 2,602,221.19 and 5,638,845.38

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Solution

The third proportional to 2,602,221.19 and 5,638,845.38 is: 12,219,014.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,602,221.19 : 5,638,845.38 = 5,638,845.38 : x
  2. Step 2: Convert to fraction form
    2,602,221.19/5,638,845.38 = 5,638,845.38/x
  3. Step 3: Cross multiply
    2,602,221.19x = 5,638,845.38 × 5,638,845.38
  4. Step 4: Simplify right side
    2,602,221.19x = 31,796,577,163,158.89
  5. Step 5: Solve for x
    x = 31,796,577,163,158.89/2,602,221.19
  6. Step 6: Final answer
    x = 12,219,014.02

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.