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Finding the Fourth Proportional to 6,642,800.55, 9,964,200.83 and 2,382,415.20

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Solution

The fourth proportional to 6,642,800.55, 9,964,200.83 and 2,382,415.20 is: 3,573,622.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,800.55 : 9,964,200.83 = 2,382,415.20 : x
  2. Step 2: Convert to fraction form
    6,642,800.55/9,964,200.83 = 2,382,415.20/x
  3. Step 3: Cross multiply
    6,642,800.55x = 9,964,200.83 × 2,382,415.20
  4. Step 4: Simplify right side
    6,642,800.55x = 23,738,863,501,332.54
  5. Step 5: Solve for x
    x = 23,738,863,501,332.54/6,642,800.55
  6. Step 6: Final answer
    x = 3,573,622.80

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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.