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Finding the Fourth Proportional to 6,608,919.71, 9,906,559.74 and 2,772,969.54

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Solution

The fourth proportional to 6,608,919.71, 9,906,559.74 and 2,772,969.54 is: 4,156,592.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,608,919.71 : 9,906,559.74 = 2,772,969.54 : x
  2. Step 2: Convert to fraction form
    6,608,919.71/9,906,559.74 = 2,772,969.54/x
  3. Step 3: Cross multiply
    6,608,919.71x = 9,906,559.74 × 2,772,969.54
  4. Step 4: Simplify right side
    6,608,919.71x = 27,470,588,405,210.32
  5. Step 5: Solve for x
    x = 27,470,588,405,210.32/6,608,919.71
  6. Step 6: Final answer
    x = 4,156,592.85

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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.