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Finding the Fourth Proportional to 9,657,828.40, 14,481,493.80 and 3,978,626.80

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Solution

The fourth proportional to 9,657,828.40, 14,481,493.80 and 3,978,626.80 is: 5,965,777.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,657,828.40 : 14,481,493.80 = 3,978,626.80 : x
  2. Step 2: Convert to fraction form
    9,657,828.40/14,481,493.80 = 3,978,626.80/x
  3. Step 3: Cross multiply
    9,657,828.40x = 14,481,493.80 × 3,978,626.80
  4. Step 4: Simplify right side
    9,657,828.40x = 57,616,459,336,713.84
  5. Step 5: Solve for x
    x = 57,616,459,336,713.84/9,657,828.40
  6. Step 6: Final answer
    x = 5,965,777.91

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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.