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Finding the Fourth Proportional to 19,383,257.60, 29,011,900.80 and 19,383,257.60

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Solution

The fourth proportional to 19,383,257.60, 29,011,900.80 and 19,383,257.60 is: 29,011,900.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,383,257.60 : 29,011,900.80 = 19,383,257.60 : x
  2. Step 2: Convert to fraction form
    19,383,257.60/29,011,900.80 = 19,383,257.60/x
  3. Step 3: Cross multiply
    19,383,257.60x = 29,011,900.80 × 19,383,257.60
  4. Step 4: Simplify right side
    19,383,257.60x = 562,345,146,672,046.12
  5. Step 5: Solve for x
    x = 562,345,146,672,046.12/19,383,257.60
  6. Step 6: Final answer
    x = 29,011,900.80

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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.