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Finding the Third Proportional to 5,329,371 and 11,721,380

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Solution

The third proportional to 5,329,371 and 11,721,380 is: 25,779,918.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329,371 : 11,721,380 = 11,721,380 : x
  2. Step 2: Convert to fraction form
    5,329,371/11,721,380 = 11,721,380/x
  3. Step 3: Cross multiply
    5,329,371x = 11,721,380 × 11,721,380
  4. Step 4: Simplify right side
    5,329,371x = 137,390,749,104,400
  5. Step 5: Solve for x
    x = 137,390,749,104,400/5,329,371
  6. Step 6: Final answer
    x = 25,779,918.33

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.