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Finding the Fourth Proportional to 7,228,568.72, 9,974,685.48 and 4,327,884.20

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Solution

The fourth proportional to 7,228,568.72, 9,974,685.48 and 4,327,884.20 is: 5,972,037.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,228,568.72 : 9,974,685.48 = 4,327,884.20 : x
  2. Step 2: Convert to fraction form
    7,228,568.72/9,974,685.48 = 4,327,884.20/x
  3. Step 3: Cross multiply
    7,228,568.72x = 9,974,685.48 × 4,327,884.20
  4. Step 4: Simplify right side
    7,228,568.72x = 43,169,283,688,861.42
  5. Step 5: Solve for x
    x = 43,169,283,688,861.42/7,228,568.72
  6. Step 6: Final answer
    x = 5,972,037.53

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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.