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Finding the Fourth Proportional to 7,136,661.38, 9,848,329.28 and 3,873,406.04

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Solution

The fourth proportional to 7,136,661.38, 9,848,329.28 and 3,873,406.04 is: 5,345,157.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136,661.38 : 9,848,329.28 = 3,873,406.04 : x
  2. Step 2: Convert to fraction form
    7,136,661.38/9,848,329.28 = 3,873,406.04/x
  3. Step 3: Cross multiply
    7,136,661.38x = 9,848,329.28 × 3,873,406.04
  4. Step 4: Simplify right side
    7,136,661.38x = 38,146,578,117,060.85
  5. Step 5: Solve for x
    x = 38,146,578,117,060.85/7,136,661.38
  6. Step 6: Final answer
    x = 5,345,157.36

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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.