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Finding the Fourth Proportional to 8,619,113.21, 11,894,467.88 and 4,751,772.86

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Solution

The fourth proportional to 8,619,113.21, 11,894,467.88 and 4,751,772.86 is: 6,557,497.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619,113.21 : 11,894,467.88 = 4,751,772.86 : x
  2. Step 2: Convert to fraction form
    8,619,113.21/11,894,467.88 = 4,751,772.86/x
  3. Step 3: Cross multiply
    8,619,113.21x = 11,894,467.88 × 4,751,772.86
  4. Step 4: Simplify right side
    8,619,113.21x = 56,519,809,697,941.34
  5. Step 5: Solve for x
    x = 56,519,809,697,941.34/8,619,113.21
  6. Step 6: Final answer
    x = 6,557,497.08

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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.