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Finding the Fourth Proportional to 8,907,525.20, 13,361,287.80 and 7,897,787.30

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Solution

The fourth proportional to 8,907,525.20, 13,361,287.80 and 7,897,787.30 is: 11,846,680.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907,525.20 : 13,361,287.80 = 7,897,787.30 : x
  2. Step 2: Convert to fraction form
    8,907,525.20/13,361,287.80 = 7,897,787.30/x
  3. Step 3: Cross multiply
    8,907,525.20x = 13,361,287.80 × 7,897,787.30
  4. Step 4: Simplify right side
    8,907,525.20x = 105,524,609,098,484.94
  5. Step 5: Solve for x
    x = 105,524,609,098,484.94/8,907,525.20
  6. Step 6: Final answer
    x = 11,846,680.95

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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.