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Finding the Fourth Proportional to 19,105.92, 28,664.64 and 5,959.68

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Solution

The fourth proportional to 19,105.92, 28,664.64 and 5,959.68 is: 8,941.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.92 : 28,664.64 = 5,959.68 : x
  2. Step 2: Convert to fraction form
    19,105.92/28,664.64 = 5,959.68/x
  3. Step 3: Cross multiply
    19,105.92x = 28,664.64 × 5,959.68
  4. Step 4: Simplify right side
    19,105.92x = 170,832,081.72
  5. Step 5: Solve for x
    x = 170,832,081.72/19,105.92
  6. Step 6: Final answer
    x = 8,941.32

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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.