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Finding the Fourth Proportional to 14,553,620.80, 21,788,440.80 and 14,133,716.80

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Solution

The fourth proportional to 14,553,620.80, 21,788,440.80 and 14,133,716.80 is: 21,159,796.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,553,620.80 : 21,788,440.80 = 14,133,716.80 : x
  2. Step 2: Convert to fraction form
    14,553,620.80/21,788,440.80 = 14,133,716.80/x
  3. Step 3: Cross multiply
    14,553,620.80x = 21,788,440.80 × 14,133,716.80
  4. Step 4: Simplify right side
    14,553,620.80x = 307,951,651,780,765.44
  5. Step 5: Solve for x
    x = 307,951,651,780,765.44/14,553,620.80
  6. Step 6: Final answer
    x = 21,159,796.32

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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.