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Finding the Third Proportional to 19,818,578.75 and 30,320,211.75

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Solution

The third proportional to 19,818,578.75 and 30,320,211.75 is: 46,386,537.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818,578.75 : 30,320,211.75 = 30,320,211.75 : x
  2. Step 2: Convert to fraction form
    19,818,578.75/30,320,211.75 = 30,320,211.75/x
  3. Step 3: Cross multiply
    19,818,578.75x = 30,320,211.75 × 30,320,211.75
  4. Step 4: Simplify right side
    19,818,578.75x = 919,315,240,564,838
  5. Step 5: Solve for x
    x = 919,315,240,564,838/19,818,578.75
  6. Step 6: Final answer
    x = 46,386,537.21

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.