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Finding the Fourth Proportional to 9,947,654.91, 13,694,601.84 and 9,490,615.65

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Solution

The fourth proportional to 9,947,654.91, 13,694,601.84 and 9,490,615.65 is: 13,065,411.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,947,654.91 : 13,694,601.84 = 9,490,615.65 : x
  2. Step 2: Convert to fraction form
    9,947,654.91/13,694,601.84 = 9,490,615.65/x
  3. Step 3: Cross multiply
    9,947,654.91x = 13,694,601.84 × 9,490,615.65
  4. Step 4: Simplify right side
    9,947,654.91x = 129,970,202,543,222.80
  5. Step 5: Solve for x
    x = 129,970,202,543,222.80/9,947,654.91
  6. Step 6: Final answer
    x = 13,065,411.27

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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.