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Finding the Fourth Proportional to 7,756,468.88, 11,636,923.12 and 2,640,026.12

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Solution

The fourth proportional to 7,756,468.88, 11,636,923.12 and 2,640,026.12 is: 3,960,794.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,756,468.88 : 11,636,923.12 = 2,640,026.12 : x
  2. Step 2: Convert to fraction form
    7,756,468.88/11,636,923.12 = 2,640,026.12/x
  3. Step 3: Cross multiply
    7,756,468.88x = 11,636,923.12 × 2,640,026.12
  4. Step 4: Simplify right side
    7,756,468.88x = 30,721,780,928,447.21
  5. Step 5: Solve for x
    x = 30,721,780,928,447.21/7,756,468.88
  6. Step 6: Final answer
    x = 3,960,794.72

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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.