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Finding the Fourth Proportional to 12,261,664.60, 18,392,496.90 and 12,261,664.60

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Solution

The fourth proportional to 12,261,664.60, 18,392,496.90 and 12,261,664.60 is: 18,392,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261,664.60 : 18,392,496.90 = 12,261,664.60 : x
  2. Step 2: Convert to fraction form
    12,261,664.60/18,392,496.90 = 12,261,664.60/x
  3. Step 3: Cross multiply
    12,261,664.60x = 18,392,496.90 × 12,261,664.60
  4. Step 4: Simplify right side
    12,261,664.60x = 225,522,628,144,339.72
  5. Step 5: Solve for x
    x = 225,522,628,144,339.72/12,261,664.60
  6. Step 6: Final answer
    x = 18,392,496.90

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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.