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Finding the Fourth Proportional to 8,493,729.20, 11,924,813.20 and 8,493,729.20

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Solution

The fourth proportional to 8,493,729.20, 11,924,813.20 and 8,493,729.20 is: 11,924,813.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,493,729.20 : 11,924,813.20 = 8,493,729.20 : x
  2. Step 2: Convert to fraction form
    8,493,729.20/11,924,813.20 = 8,493,729.20/x
  3. Step 3: Cross multiply
    8,493,729.20x = 11,924,813.20 × 8,493,729.20
  4. Step 4: Simplify right side
    8,493,729.20x = 101,286,134,081,385.42
  5. Step 5: Solve for x
    x = 101,286,134,081,385.42/8,493,729.20
  6. Step 6: Final answer
    x = 11,924,813.20

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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.