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Finding the Fourth Proportional to 13,952.01, 20,928.06 and 3,422.07

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Solution

The fourth proportional to 13,952.01, 20,928.06 and 3,422.07 is: 5,133.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,952.01 : 20,928.06 = 3,422.07 : x
  2. Step 2: Convert to fraction form
    13,952.01/20,928.06 = 3,422.07/x
  3. Step 3: Cross multiply
    13,952.01x = 20,928.06 × 3,422.07
  4. Step 4: Simplify right side
    13,952.01x = 71,617,286.28
  5. Step 5: Solve for x
    x = 71,617,286.28/13,952.01
  6. Step 6: Final answer
    x = 5,133.12

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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.