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Finding the Fourth Proportional to 21,063,400.35, 29,573,791.05 and 21,063,400.35

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Solution

The fourth proportional to 21,063,400.35, 29,573,791.05 and 21,063,400.35 is: 29,573,791.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063,400.35 : 29,573,791.05 = 21,063,400.35 : x
  2. Step 2: Convert to fraction form
    21,063,400.35/29,573,791.05 = 21,063,400.35/x
  3. Step 3: Cross multiply
    21,063,400.35x = 29,573,791.05 × 21,063,400.35
  4. Step 4: Simplify right side
    21,063,400.35x = 622,924,600,753,396.88
  5. Step 5: Solve for x
    x = 622,924,600,753,396.88/21,063,400.35
  6. Step 6: Final answer
    x = 29,573,791.05

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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.