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Finding the Fourth Proportional to 6,668,982.72, 9,203,109.84 and 3,768,184.80

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Solution

The fourth proportional to 6,668,982.72, 9,203,109.84 and 3,768,184.80 is: 5,200,046.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668,982.72 : 9,203,109.84 = 3,768,184.80 : x
  2. Step 2: Convert to fraction form
    6,668,982.72/9,203,109.84 = 3,768,184.80/x
  3. Step 3: Cross multiply
    6,668,982.72x = 9,203,109.84 × 3,768,184.80
  4. Step 4: Simplify right side
    6,668,982.72x = 34,679,018,611,818.43
  5. Step 5: Solve for x
    x = 34,679,018,611,818.43/6,668,982.72
  6. Step 6: Final answer
    x = 5,200,046.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.