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Finding the Fourth Proportional to 50,907.69, 70,249.41 and 30,752.64

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Solution

The fourth proportional to 50,907.69, 70,249.41 and 30,752.64 is: 42,436.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,907.69 : 70,249.41 = 30,752.64 : x
  2. Step 2: Convert to fraction form
    50,907.69/70,249.41 = 30,752.64/x
  3. Step 3: Cross multiply
    50,907.69x = 70,249.41 × 30,752.64
  4. Step 4: Simplify right side
    50,907.69x = 2,160,354,815.94
  5. Step 5: Solve for x
    x = 2,160,354,815.94/50,907.69
  6. Step 6: Final answer
    x = 42,436.71

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1.5x scale

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.