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Finding the Fourth Proportional to 10,986,476.60, 16,446,537.30 and 9,659,372.60

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Solution

The fourth proportional to 10,986,476.60, 16,446,537.30 and 9,659,372.60 is: 14,459,888.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,986,476.60 : 16,446,537.30 = 9,659,372.60 : x
  2. Step 2: Convert to fraction form
    10,986,476.60/16,446,537.30 = 9,659,372.60/x
  3. Step 3: Cross multiply
    10,986,476.60x = 16,446,537.30 × 9,659,372.60
  4. Step 4: Simplify right side
    10,986,476.60x = 158,863,231,760,497.97
  5. Step 5: Solve for x
    x = 158,863,231,760,497.97/10,986,476.60
  6. Step 6: Final answer
    x = 14,459,888.97

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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.