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Finding the Fourth Proportional to 10,679.28, 16,019.28 and 3,283.92

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Solution

The fourth proportional to 10,679.28, 16,019.28 and 3,283.92 is: 4,925.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,679.28 : 16,019.28 = 3,283.92 : x
  2. Step 2: Convert to fraction form
    10,679.28/16,019.28 = 3,283.92/x
  3. Step 3: Cross multiply
    10,679.28x = 16,019.28 × 3,283.92
  4. Step 4: Simplify right side
    10,679.28x = 52,606,033.98
  5. Step 5: Solve for x
    x = 52,606,033.98/10,679.28
  6. Step 6: Final answer
    x = 4,925.99

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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.