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Finding the Third Proportional to 847,121 and 1,860,127

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Solution

The third proportional to 847,121 and 1,860,127 is: 4,084,507.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,121 : 1,860,127 = 1,860,127 : x
  2. Step 2: Convert to fraction form
    847,121/1,860,127 = 1,860,127/x
  3. Step 3: Cross multiply
    847,121x = 1,860,127 × 1,860,127
  4. Step 4: Simplify right side
    847,121x = 3,460,072,456,129
  5. Step 5: Solve for x
    x = 3,460,072,456,129/847,121
  6. Step 6: Final answer
    x = 4,084,507.95

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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.