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Finding the Fourth Proportional to 5,393,710.76, 8,089,471.02 and 1,980,824.36

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Solution

The fourth proportional to 5,393,710.76, 8,089,471.02 and 1,980,824.36 is: 2,970,834.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393,710.76 : 8,089,471.02 = 1,980,824.36 : x
  2. Step 2: Convert to fraction form
    5,393,710.76/8,089,471.02 = 1,980,824.36/x
  3. Step 3: Cross multiply
    5,393,710.76x = 8,089,471.02 × 1,980,824.36
  4. Step 4: Simplify right side
    5,393,710.76x = 16,023,821,255,930.05
  5. Step 5: Solve for x
    x = 16,023,821,255,930.05/5,393,710.76
  6. Step 6: Final answer
    x = 2,970,834.36

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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.