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Finding the Fourth Proportional to 25,955.36, 38,928.63 and 7,237.27

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Solution

The fourth proportional to 25,955.36, 38,928.63 and 7,237.27 is: 10,854.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,955.36 : 38,928.63 = 7,237.27 : x
  2. Step 2: Convert to fraction form
    25,955.36/38,928.63 = 7,237.27/x
  3. Step 3: Cross multiply
    25,955.36x = 38,928.63 × 7,237.27
  4. Step 4: Simplify right side
    25,955.36x = 281,736,811.40
  5. Step 5: Solve for x
    x = 281,736,811.40/25,955.36
  6. Step 6: Final answer
    x = 10,854.67

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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.