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Finding the Fourth Proportional to 6,611,874.68, 9,918,600.75 and 3,197,707.92

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Solution

The fourth proportional to 6,611,874.68, 9,918,600.75 and 3,197,707.92 is: 4,796,943.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611,874.68 : 9,918,600.75 = 3,197,707.92 : x
  2. Step 2: Convert to fraction form
    6,611,874.68/9,918,600.75 = 3,197,707.92/x
  3. Step 3: Cross multiply
    6,611,874.68x = 9,918,600.75 × 3,197,707.92
  4. Step 4: Simplify right side
    6,611,874.68x = 31,716,788,173,592.94
  5. Step 5: Solve for x
    x = 31,716,788,173,592.94/6,611,874.68
  6. Step 6: Final answer
    x = 4,796,943.33

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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.