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Finding the Fourth Proportional to 19,251.92, 28,860.12 and 6,937.04

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Solution

The fourth proportional to 19,251.92, 28,860.12 and 6,937.04 is: 10,399.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,251.92 : 28,860.12 = 6,937.04 : x
  2. Step 2: Convert to fraction form
    19,251.92/28,860.12 = 6,937.04/x
  3. Step 3: Cross multiply
    19,251.92x = 28,860.12 × 6,937.04
  4. Step 4: Simplify right side
    19,251.92x = 200,203,806.84
  5. Step 5: Solve for x
    x = 200,203,806.84/19,251.92
  6. Step 6: Final answer
    x = 10,399.16

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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.