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Finding the Fourth Proportional to 6,659,668.33, 9,985,457.29 and 2,611,305.88

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Solution

The fourth proportional to 6,659,668.33, 9,985,457.29 and 2,611,305.88 is: 3,915,372.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659,668.33 : 9,985,457.29 = 2,611,305.88 : x
  2. Step 2: Convert to fraction form
    6,659,668.33/9,985,457.29 = 2,611,305.88/x
  3. Step 3: Cross multiply
    6,659,668.33x = 9,985,457.29 × 2,611,305.88
  4. Step 4: Simplify right side
    6,659,668.33x = 26,075,083,335,865.86
  5. Step 5: Solve for x
    x = 26,075,083,335,865.86/6,659,668.33
  6. Step 6: Final answer
    x = 3,915,372.66

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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.