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Finding the Fourth Proportional to 46,951.92, 70,379.82 and 20,651.76

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Solution

The fourth proportional to 46,951.92, 70,379.82 and 20,651.76 is: 30,956.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,951.92 : 70,379.82 = 20,651.76 : x
  2. Step 2: Convert to fraction form
    46,951.92/70,379.82 = 20,651.76/x
  3. Step 3: Cross multiply
    46,951.92x = 70,379.82 × 20,651.76
  4. Step 4: Simplify right side
    46,951.92x = 1,453,467,151.48
  5. Step 5: Solve for x
    x = 1,453,467,151.48/46,951.92
  6. Step 6: Final answer
    x = 30,956.50

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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.