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Finding the Fourth Proportional to 18,773,491.84, 25,907,429.28 and 10,188,787.84

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Solution

The fourth proportional to 18,773,491.84, 25,907,429.28 and 10,188,787.84 is: 14,060,532.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,773,491.84 : 25,907,429.28 = 10,188,787.84 : x
  2. Step 2: Convert to fraction form
    18,773,491.84/25,907,429.28 = 10,188,787.84/x
  3. Step 3: Cross multiply
    18,773,491.84x = 25,907,429.28 × 10,188,787.84
  4. Step 4: Simplify right side
    18,773,491.84x = 263,965,300,413,723.97
  5. Step 5: Solve for x
    x = 263,965,300,413,723.97/18,773,491.84
  6. Step 6: Final answer
    x = 14,060,532.94

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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.