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Finding the Fourth Proportional to 14,497,906.22, 20,007,185.05 and 7,971,956.54

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Solution

The fourth proportional to 14,497,906.22, 20,007,185.05 and 7,971,956.54 is: 11,001,340.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,497,906.22 : 20,007,185.05 = 7,971,956.54 : x
  2. Step 2: Convert to fraction form
    14,497,906.22/20,007,185.05 = 7,971,956.54/x
  3. Step 3: Cross multiply
    14,497,906.22x = 20,007,185.05 × 7,971,956.54
  4. Step 4: Simplify right side
    14,497,906.22x = 159,496,409,706,337.72
  5. Step 5: Solve for x
    x = 159,496,409,706,337.72/14,497,906.22
  6. Step 6: Final answer
    x = 11,001,340.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.