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Finding the Fourth Proportional to 7,136,889.51, 9,848,643.67 and 3,873,634.69

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Solution

The fourth proportional to 7,136,889.51, 9,848,643.67 and 3,873,634.69 is: 5,345,472.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136,889.51 : 9,848,643.67 = 3,873,634.69 : x
  2. Step 2: Convert to fraction form
    7,136,889.51/9,848,643.67 = 3,873,634.69/x
  3. Step 3: Cross multiply
    7,136,889.51x = 9,848,643.67 × 3,873,634.69
  4. Step 4: Simplify right side
    7,136,889.51x = 38,150,047,743,503.79
  5. Step 5: Solve for x
    x = 38,150,047,743,503.79/7,136,889.51
  6. Step 6: Final answer
    x = 5,345,472.66

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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.