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Finding the Fourth Proportional to 17,162,698.80, 25,706,723.40 and 10,419,351.60

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Solution

The fourth proportional to 17,162,698.80, 25,706,723.40 and 10,419,351.60 is: 15,606,367.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,162,698.80 : 25,706,723.40 = 10,419,351.60 : x
  2. Step 2: Convert to fraction form
    17,162,698.80/25,706,723.40 = 10,419,351.60/x
  3. Step 3: Cross multiply
    17,162,698.80x = 25,706,723.40 × 10,419,351.60
  4. Step 4: Simplify right side
    17,162,698.80x = 267,847,389,588,547.41
  5. Step 5: Solve for x
    x = 267,847,389,588,547.41/17,162,698.80
  6. Step 6: Final answer
    x = 15,606,367.78

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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.