Home / 47,081.43-70,622.10-12,021.12

Finding the Fourth Proportional to 47,081.43, 70,622.10 and 12,021.12

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Solution

The fourth proportional to 47,081.43, 70,622.10 and 12,021.12 is: 18,031.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,081.43 : 70,622.10 = 12,021.12 : x
  2. Step 2: Convert to fraction form
    47,081.43/70,622.10 = 12,021.12/x
  3. Step 3: Cross multiply
    47,081.43x = 70,622.10 × 12,021.12
  4. Step 4: Simplify right side
    47,081.43x = 848,956,738.75
  5. Step 5: Solve for x
    x = 848,956,738.75/47,081.43
  6. Step 6: Final answer
    x = 18,031.67

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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.