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Finding the Fourth Proportional to 6,312.92, 8,711.61 and 3,441.59

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Solution

The fourth proportional to 6,312.92, 8,711.61 and 3,441.59 is: 4,749.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,312.92 : 8,711.61 = 3,441.59 : x
  2. Step 2: Convert to fraction form
    6,312.92/8,711.61 = 3,441.59/x
  3. Step 3: Cross multiply
    6,312.92x = 8,711.61 × 3,441.59
  4. Step 4: Simplify right side
    6,312.92x = 29,981,813.63
  5. Step 5: Solve for x
    x = 29,981,813.63/6,312.92
  6. Step 6: Final answer
    x = 4,749.28

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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.