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Finding the Fourth Proportional to 5,672,913.20, 8,509,369.80 and 3,881,322.80

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Solution

The fourth proportional to 5,672,913.20, 8,509,369.80 and 3,881,322.80 is: 5,821,984.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,672,913.20 : 8,509,369.80 = 3,881,322.80 : x
  2. Step 2: Convert to fraction form
    5,672,913.20/8,509,369.80 = 3,881,322.80/x
  3. Step 3: Cross multiply
    5,672,913.20x = 8,509,369.80 × 3,881,322.80
  4. Step 4: Simplify right side
    5,672,913.20x = 33,027,611,018,371.44
  5. Step 5: Solve for x
    x = 33,027,611,018,371.44/5,672,913.20
  6. Step 6: Final answer
    x = 5,821,984.20

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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.