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Finding the Fourth Proportional to 13,744,615.68, 20,616,978.60 and 4,646,761.56

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Solution

The fourth proportional to 13,744,615.68, 20,616,978.60 and 4,646,761.56 is: 6,970,160.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,744,615.68 : 20,616,978.60 = 4,646,761.56 : x
  2. Step 2: Convert to fraction form
    13,744,615.68/20,616,978.60 = 4,646,761.56/x
  3. Step 3: Cross multiply
    13,744,615.68x = 20,616,978.60 × 4,646,761.56
  4. Step 4: Simplify right side
    13,744,615.68x = 95,802,183,641,822.61
  5. Step 5: Solve for x
    x = 95,802,183,641,822.61/13,744,615.68
  6. Step 6: Final answer
    x = 6,970,160.96

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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.