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Finding the Fourth Proportional to 6,752,591.78, 9,319,754.20 and 4,000,828.50

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Solution

The fourth proportional to 6,752,591.78, 9,319,754.20 and 4,000,828.50 is: 5,521,841.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,752,591.78 : 9,319,754.20 = 4,000,828.50 : x
  2. Step 2: Convert to fraction form
    6,752,591.78/9,319,754.20 = 4,000,828.50/x
  3. Step 3: Cross multiply
    6,752,591.78x = 9,319,754.20 × 4,000,828.50
  4. Step 4: Simplify right side
    6,752,591.78x = 37,286,738,188,878.09
  5. Step 5: Solve for x
    x = 37,286,738,188,878.09/6,752,591.78
  6. Step 6: Final answer
    x = 5,521,841.00

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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.