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Finding the Fourth Proportional to 25,480.92, 38,221.40 and 7,952.12

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Solution

The fourth proportional to 25,480.92, 38,221.40 and 7,952.12 is: 11,928.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,480.92 : 38,221.40 = 7,952.12 : x
  2. Step 2: Convert to fraction form
    25,480.92/38,221.40 = 7,952.12/x
  3. Step 3: Cross multiply
    25,480.92x = 38,221.40 × 7,952.12
  4. Step 4: Simplify right side
    25,480.92x = 303,941,159.37
  5. Step 5: Solve for x
    x = 303,941,159.37/25,480.92
  6. Step 6: Final answer
    x = 11,928.19

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Similar ratio
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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.