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Finding the Fourth Proportional to 25,928.56, 38,900.96 and 9,288.28

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Solution

The fourth proportional to 25,928.56, 38,900.96 and 9,288.28 is: 13,935.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,928.56 : 38,900.96 = 9,288.28 : x
  2. Step 2: Convert to fraction form
    25,928.56/38,900.96 = 9,288.28/x
  3. Step 3: Cross multiply
    25,928.56x = 38,900.96 × 9,288.28
  4. Step 4: Simplify right side
    25,928.56x = 361,323,008.75
  5. Step 5: Solve for x
    x = 361,323,008.75/25,928.56
  6. Step 6: Final answer
    x = 13,935.33

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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.