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Finding the Fourth Proportional to 21,881,234.20, 32,821,851.30 and 21,881,234.20

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Solution

The fourth proportional to 21,881,234.20, 32,821,851.30 and 21,881,234.20 is: 32,821,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,881,234.20 : 32,821,851.30 = 21,881,234.20 : x
  2. Step 2: Convert to fraction form
    21,881,234.20/32,821,851.30 = 21,881,234.20/x
  3. Step 3: Cross multiply
    21,881,234.20x = 32,821,851.30 × 21,881,234.20
  4. Step 4: Simplify right side
    21,881,234.20x = 718,182,615,172,874.50
  5. Step 5: Solve for x
    x = 718,182,615,172,874.50/21,881,234.20
  6. Step 6: Final answer
    x = 32,821,851.30

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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.