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Finding the Fourth Proportional to 21,904,810.20, 32,794,229.70 and 21,274,954.20

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Solution

The fourth proportional to 21,904,810.20, 32,794,229.70 and 21,274,954.20 is: 31,851,256.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904,810.20 : 32,794,229.70 = 21,274,954.20 : x
  2. Step 2: Convert to fraction form
    21,904,810.20/32,794,229.70 = 21,274,954.20/x
  3. Step 3: Cross multiply
    21,904,810.20x = 32,794,229.70 × 21,274,954.20
  4. Step 4: Simplify right side
    21,904,810.20x = 697,695,734,891,779.75
  5. Step 5: Solve for x
    x = 697,695,734,891,779.75/21,904,810.20
  6. Step 6: Final answer
    x = 31,851,256.80

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