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Finding the Fourth Proportional to 17,212,461.21, 23,753,354.22 and 9,477,780.30

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Solution

The fourth proportional to 17,212,461.21, 23,753,354.22 and 9,477,780.30 is: 13,079,423.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,212,461.21 : 23,753,354.22 = 9,477,780.30 : x
  2. Step 2: Convert to fraction form
    17,212,461.21/23,753,354.22 = 9,477,780.30/x
  3. Step 3: Cross multiply
    17,212,461.21x = 23,753,354.22 × 9,477,780.30
  4. Step 4: Simplify right side
    17,212,461.21x = 225,129,072,685,237.88
  5. Step 5: Solve for x
    x = 225,129,072,685,237.88/17,212,461.21
  6. Step 6: Final answer
    x = 13,079,423.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.