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Finding the Fourth Proportional to 11,925,961.60, 17,888,942.40 and 11,925,961.60

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Solution

The fourth proportional to 11,925,961.60, 17,888,942.40 and 11,925,961.60 is: 17,888,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925,961.60 : 17,888,942.40 = 11,925,961.60 : x
  2. Step 2: Convert to fraction form
    11,925,961.60/17,888,942.40 = 11,925,961.60/x
  3. Step 3: Cross multiply
    11,925,961.60x = 17,888,942.40 × 11,925,961.60
  4. Step 4: Simplify right side
    11,925,961.60x = 213,342,840,127,011.81
  5. Step 5: Solve for x
    x = 213,342,840,127,011.81/11,925,961.60
  6. Step 6: Final answer
    x = 17,888,942.40

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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.