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Finding the Fourth Proportional to 8,064,697.20, 12,097,045.80 and 7,672,786.80

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Solution

The fourth proportional to 8,064,697.20, 12,097,045.80 and 7,672,786.80 is: 11,509,180.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,064,697.20 : 12,097,045.80 = 7,672,786.80 : x
  2. Step 2: Convert to fraction form
    8,064,697.20/12,097,045.80 = 7,672,786.80/x
  3. Step 3: Cross multiply
    8,064,697.20x = 12,097,045.80 × 7,672,786.80
  4. Step 4: Simplify right side
    8,064,697.20x = 92,818,053,333,235.44
  5. Step 5: Solve for x
    x = 92,818,053,333,235.44/8,064,697.20
  6. Step 6: Final answer
    x = 11,509,180.20

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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.