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Finding the Fourth Proportional to 17,162,703.80, 25,706,730.90 and 10,419,356.60

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Solution

The fourth proportional to 17,162,703.80, 25,706,730.90 and 10,419,356.60 is: 15,606,375.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,162,703.80 : 25,706,730.90 = 10,419,356.60 : x
  2. Step 2: Convert to fraction form
    17,162,703.80/25,706,730.90 = 10,419,356.60/x
  3. Step 3: Cross multiply
    17,162,703.80x = 25,706,730.90 × 10,419,356.60
  4. Step 4: Simplify right side
    17,162,703.80x = 267,847,596,267,338.91
  5. Step 5: Solve for x
    x = 267,847,596,267,338.91/17,162,703.80
  6. Step 6: Final answer
    x = 15,606,375.28

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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.