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Finding the Third Proportional to 15,128,220 and 22,707,820

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Solution

The third proportional to 15,128,220 and 22,707,820 is: 34,084,980.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128,220 : 22,707,820 = 22,707,820 : x
  2. Step 2: Convert to fraction form
    15,128,220/22,707,820 = 22,707,820/x
  3. Step 3: Cross multiply
    15,128,220x = 22,707,820 × 22,707,820
  4. Step 4: Simplify right side
    15,128,220x = 515,645,089,152,400
  5. Step 5: Solve for x
    x = 515,645,089,152,400/15,128,220
  6. Step 6: Final answer
    x = 34,084,980.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.