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Finding the Fourth Proportional to 5,271,876.39, 7,899,635.33 and 3,655,797.53

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Solution

The fourth proportional to 5,271,876.39, 7,899,635.33 and 3,655,797.53 is: 5,478,024.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271,876.39 : 7,899,635.33 = 3,655,797.53 : x
  2. Step 2: Convert to fraction form
    5,271,876.39/7,899,635.33 = 3,655,797.53/x
  3. Step 3: Cross multiply
    5,271,876.39x = 7,899,635.33 × 3,655,797.53
  4. Step 4: Simplify right side
    5,271,876.39x = 28,879,467,327,314.73
  5. Step 5: Solve for x
    x = 28,879,467,327,314.73/5,271,876.39
  6. Step 6: Final answer
    x = 5,478,024.37

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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.