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Finding the Fourth Proportional to 6,611,872.42, 9,918,597.37 and 3,197,705.66

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Solution

The fourth proportional to 6,611,872.42, 9,918,597.37 and 3,197,705.66 is: 4,796,939.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611,872.42 : 9,918,597.37 = 3,197,705.66 : x
  2. Step 2: Convert to fraction form
    6,611,872.42/9,918,597.37 = 3,197,705.66/x
  3. Step 3: Cross multiply
    6,611,872.42x = 9,918,597.37 × 3,197,705.66
  4. Step 4: Simplify right side
    6,611,872.42x = 31,716,754,990,705.41
  5. Step 5: Solve for x
    x = 31,716,754,990,705.41/6,611,872.42
  6. Step 6: Final answer
    x = 4,796,939.95

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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.