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Finding the Fourth Proportional to 84,049.72, 126,093.98 and 27,885.64

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Solution

The fourth proportional to 84,049.72, 126,093.98 and 27,885.64 is: 41,834.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,049.72 : 126,093.98 = 27,885.64 : x
  2. Step 2: Convert to fraction form
    84,049.72/126,093.98 = 27,885.64/x
  3. Step 3: Cross multiply
    84,049.72x = 126,093.98 × 27,885.64
  4. Step 4: Simplify right side
    84,049.72x = 3,516,211,332.45
  5. Step 5: Solve for x
    x = 3,516,211,332.45/84,049.72
  6. Step 6: Final answer
    x = 41,834.90

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1.5x scale

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.