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Finding the Fourth Proportional to 9,908,672.40, 14,845,293.90 and 8,491,496.40

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Solution

The fourth proportional to 9,908,672.40, 14,845,293.90 and 8,491,496.40 is: 12,722,063.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,908,672.40 : 14,845,293.90 = 8,491,496.40 : x
  2. Step 2: Convert to fraction form
    9,908,672.40/14,845,293.90 = 8,491,496.40/x
  3. Step 3: Cross multiply
    9,908,672.40x = 14,845,293.90 × 8,491,496.40
  4. Step 4: Simplify right side
    9,908,672.40x = 126,058,759,708,791.97
  5. Step 5: Solve for x
    x = 126,058,759,708,791.97/9,908,672.40
  6. Step 6: Final answer
    x = 12,722,063.52

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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.