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Finding the Fourth Proportional to 19,292.92, 28,940.51 and 7,446.76

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Solution

The fourth proportional to 19,292.92, 28,940.51 and 7,446.76 is: 11,170.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,292.92 : 28,940.51 = 7,446.76 : x
  2. Step 2: Convert to fraction form
    19,292.92/28,940.51 = 7,446.76/x
  3. Step 3: Cross multiply
    19,292.92x = 28,940.51 × 7,446.76
  4. Step 4: Simplify right side
    19,292.92x = 215,513,135.59
  5. Step 5: Solve for x
    x = 215,513,135.59/19,292.92
  6. Step 6: Final answer
    x = 11,170.58

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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.