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Finding the Fourth Proportional to 5,458,968.72, 8,171,656.92 and 3,561,624.72

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Solution

The fourth proportional to 5,458,968.72, 8,171,656.92 and 3,561,624.72 is: 5,331,478.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,458,968.72 : 8,171,656.92 = 3,561,624.72 : x
  2. Step 2: Convert to fraction form
    5,458,968.72/8,171,656.92 = 3,561,624.72/x
  3. Step 3: Cross multiply
    5,458,968.72x = 8,171,656.92 × 3,561,624.72
  4. Step 4: Simplify right side
    5,458,968.72x = 29,104,375,289,631.06
  5. Step 5: Solve for x
    x = 29,104,375,289,631.06/5,458,968.72
  6. Step 6: Final answer
    x = 5,331,478.67

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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.