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Finding the Fourth Proportional to 57,421, 79,249.49 and 33,560.83

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Solution

The fourth proportional to 57,421, 79,249.49 and 33,560.83 is: 46,318.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,421 : 79,249.49 = 33,560.83 : x
  2. Step 2: Convert to fraction form
    57,421/79,249.49 = 33,560.83/x
  3. Step 3: Cross multiply
    57,421x = 79,249.49 × 33,560.83
  4. Step 4: Simplify right side
    57,421x = 2,659,678,661.48
  5. Step 5: Solve for x
    x = 2,659,678,661.48/57,421
  6. Step 6: Final answer
    x = 46,318.92

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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.