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Finding the Fourth Proportional to 18,467,999.30, 25,897,714.30 and 18,467,999.30

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Solution

The fourth proportional to 18,467,999.30, 25,897,714.30 and 18,467,999.30 is: 25,897,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,467,999.30 : 25,897,714.30 = 18,467,999.30 : x
  2. Step 2: Convert to fraction form
    18,467,999.30/25,897,714.30 = 18,467,999.30/x
  3. Step 3: Cross multiply
    18,467,999.30x = 25,897,714.30 × 18,467,999.30
  4. Step 4: Simplify right side
    18,467,999.30x = 478,278,969,564,000
  5. Step 5: Solve for x
    x = 478,278,969,564,000/18,467,999.30
  6. Step 6: Final answer
    x = 25,897,714.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.