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Finding the Fourth Proportional to 5,649,544.90, 7,789,054.20 and 3,659,139.22

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Solution

The fourth proportional to 5,649,544.90, 7,789,054.20 and 3,659,139.22 is: 5,044,872.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,649,544.90 : 7,789,054.20 = 3,659,139.22 : x
  2. Step 2: Convert to fraction form
    5,649,544.90/7,789,054.20 = 3,659,139.22/x
  3. Step 3: Cross multiply
    5,649,544.90x = 7,789,054.20 × 3,659,139.22
  4. Step 4: Simplify right side
    5,649,544.90x = 28,501,233,709,925.73
  5. Step 5: Solve for x
    x = 28,501,233,709,925.73/5,649,544.90
  6. Step 6: Final answer
    x = 5,044,872.50

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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.