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Finding the Fourth Proportional to 57,745.70, 79,666.70 and 33,863.66

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Solution

The fourth proportional to 57,745.70, 79,666.70 and 33,863.66 is: 46,718.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,745.70 : 79,666.70 = 33,863.66 : x
  2. Step 2: Convert to fraction form
    57,745.70/79,666.70 = 33,863.66/x
  3. Step 3: Cross multiply
    57,745.70x = 79,666.70 × 33,863.66
  4. Step 4: Simplify right side
    57,745.70x = 2,697,805,474.47
  5. Step 5: Solve for x
    x = 2,697,805,474.47/57,745.70
  6. Step 6: Final answer
    x = 46,718.73

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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.