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Finding the Fourth Proportional to 13,405,500.45, 20,068,392.60 and 13,405,500.45

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Solution

The fourth proportional to 13,405,500.45, 20,068,392.60 and 13,405,500.45 is: 20,068,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,405,500.45 : 20,068,392.60 = 13,405,500.45 : x
  2. Step 2: Convert to fraction form
    13,405,500.45/20,068,392.60 = 13,405,500.45/x
  3. Step 3: Cross multiply
    13,405,500.45x = 20,068,392.60 × 13,405,500.45
  4. Step 4: Simplify right side
    13,405,500.45x = 269,026,846,030,076.69
  5. Step 5: Solve for x
    x = 269,026,846,030,076.69/13,405,500.45
  6. Step 6: Final answer
    x = 20,068,392.60

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1.5x scale

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.