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Finding the Fourth Proportional to 75,479.92, 113,213.34 and 25,558.96

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Solution

The fourth proportional to 75,479.92, 113,213.34 and 25,558.96 is: 38,336.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,479.92 : 113,213.34 = 25,558.96 : x
  2. Step 2: Convert to fraction form
    75,479.92/113,213.34 = 25,558.96/x
  3. Step 3: Cross multiply
    75,479.92x = 113,213.34 × 25,558.96
  4. Step 4: Simplify right side
    75,479.92x = 2,893,615,228.53
  5. Step 5: Solve for x
    x = 2,893,615,228.53/75,479.92
  6. Step 6: Final answer
    x = 38,336.23

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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.