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Finding the Fourth Proportional to 13,836,508.40, 20,754,762.60 and 13,647,551.60

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Solution

The fourth proportional to 13,836,508.40, 20,754,762.60 and 13,647,551.60 is: 20,471,327.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,836,508.40 : 20,754,762.60 = 13,647,551.60 : x
  2. Step 2: Convert to fraction form
    13,836,508.40/20,754,762.60 = 13,647,551.60/x
  3. Step 3: Cross multiply
    13,836,508.40x = 20,754,762.60 × 13,647,551.60
  4. Step 4: Simplify right side
    13,836,508.40x = 283,251,693,529,250.19
  5. Step 5: Solve for x
    x = 283,251,693,529,250.19/13,836,508.40
  6. Step 6: Final answer
    x = 20,471,327.40

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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.