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Finding the Fourth Proportional to 7,183,471.82, 9,913,423.02 and 4,085,915.59

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Solution

The fourth proportional to 7,183,471.82, 9,913,423.02 and 4,085,915.59 is: 5,638,695.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183,471.82 : 9,913,423.02 = 4,085,915.59 : x
  2. Step 2: Convert to fraction form
    7,183,471.82/9,913,423.02 = 4,085,915.59/x
  3. Step 3: Cross multiply
    7,183,471.82x = 9,913,423.02 × 4,085,915.59
  4. Step 4: Simplify right side
    7,183,471.82x = 40,505,409,667,682.88
  5. Step 5: Solve for x
    x = 40,505,409,667,682.88/7,183,471.82
  6. Step 6: Final answer
    x = 5,638,695.42

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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.