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Finding the Third Proportional to 26,986,670 and 42,920,205

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Solution

The third proportional to 26,986,670 and 42,920,205 is: 68,261,256.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,986,670 : 42,920,205 = 42,920,205 : x
  2. Step 2: Convert to fraction form
    26,986,670/42,920,205 = 42,920,205/x
  3. Step 3: Cross multiply
    26,986,670x = 42,920,205 × 42,920,205
  4. Step 4: Simplify right side
    26,986,670x = 1,842,143,997,242,025
  5. Step 5: Solve for x
    x = 1,842,143,997,242,025/26,986,670
  6. Step 6: Final answer
    x = 68,261,256.29

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.