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Finding the Third Proportional to 19,989,255 and 30,229,920

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Solution

The third proportional to 19,989,255 and 30,229,920 is: 45,716,964.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989,255 : 30,229,920 = 30,229,920 : x
  2. Step 2: Convert to fraction form
    19,989,255/30,229,920 = 30,229,920/x
  3. Step 3: Cross multiply
    19,989,255x = 30,229,920 × 30,229,920
  4. Step 4: Simplify right side
    19,989,255x = 913,848,063,206,400
  5. Step 5: Solve for x
    x = 913,848,063,206,400/19,989,255
  6. Step 6: Final answer
    x = 45,716,964.60

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.