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Finding the Fourth Proportional to 57,411.99, 79,250.70 and 38,284.85

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Solution

The fourth proportional to 57,411.99, 79,250.70 and 38,284.85 is: 52,847.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,411.99 : 79,250.70 = 38,284.85 : x
  2. Step 2: Convert to fraction form
    57,411.99/79,250.70 = 38,284.85/x
  3. Step 3: Cross multiply
    57,411.99x = 79,250.70 × 38,284.85
  4. Step 4: Simplify right side
    57,411.99x = 3,034,101,503.59
  5. Step 5: Solve for x
    x = 3,034,101,503.59/57,411.99
  6. Step 6: Final answer
    x = 52,847.87

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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.