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Finding the Fourth Proportional to 25,797.72, 38,683.62 and 11,956.44

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Solution

The fourth proportional to 25,797.72, 38,683.62 and 11,956.44 is: 17,928.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,797.72 : 38,683.62 = 11,956.44 : x
  2. Step 2: Convert to fraction form
    25,797.72/38,683.62 = 11,956.44/x
  3. Step 3: Cross multiply
    25,797.72x = 38,683.62 × 11,956.44
  4. Step 4: Simplify right side
    25,797.72x = 462,518,381.51
  5. Step 5: Solve for x
    x = 462,518,381.51/25,797.72
  6. Step 6: Final answer
    x = 17,928.65

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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.