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Finding the Fourth Proportional to 14,896.32, 20,553.12 and 9,928.32

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Solution

The fourth proportional to 14,896.32, 20,553.12 and 9,928.32 is: 13,698.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,896.32 : 20,553.12 = 9,928.32 : x
  2. Step 2: Convert to fraction form
    14,896.32/20,553.12 = 9,928.32/x
  3. Step 3: Cross multiply
    14,896.32x = 20,553.12 × 9,928.32
  4. Step 4: Simplify right side
    14,896.32x = 204,057,952.36
  5. Step 5: Solve for x
    x = 204,057,952.36/14,896.32
  6. Step 6: Final answer
    x = 13,698.55

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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.