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Finding the Fourth Proportional to 6,861,938.76, 9,469,406.52 and 3,806,074.44

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Solution

The fourth proportional to 6,861,938.76, 9,469,406.52 and 3,806,074.44 is: 5,252,344.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861,938.76 : 9,469,406.52 = 3,806,074.44 : x
  2. Step 2: Convert to fraction form
    6,861,938.76/9,469,406.52 = 3,806,074.44/x
  3. Step 3: Cross multiply
    6,861,938.76x = 9,469,406.52 × 3,806,074.44
  4. Step 4: Simplify right side
    6,861,938.76x = 36,041,266,117,741.34
  5. Step 5: Solve for x
    x = 36,041,266,117,741.34/6,861,938.76
  6. Step 6: Final answer
    x = 5,252,344.47

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Double scale
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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.