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Finding the Fourth Proportional to 7,873,497.16, 11,810,245.89 and 1,889,865.16

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Solution

The fourth proportional to 7,873,497.16, 11,810,245.89 and 1,889,865.16 is: 2,834,797.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,873,497.16 : 11,810,245.89 = 1,889,865.16 : x
  2. Step 2: Convert to fraction form
    7,873,497.16/11,810,245.89 = 1,889,865.16/x
  3. Step 3: Cross multiply
    7,873,497.16x = 11,810,245.89 × 1,889,865.16
  4. Step 4: Simplify right side
    7,873,497.16x = 22,319,772,238,544.19
  5. Step 5: Solve for x
    x = 22,319,772,238,544.19/7,873,497.16
  6. Step 6: Final answer
    x = 2,834,797.78

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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.