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Finding the Fourth Proportional to 38,407.92, 57,611.79 and 10,705.92

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Solution

The fourth proportional to 38,407.92, 57,611.79 and 10,705.92 is: 16,058.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,407.92 : 57,611.79 = 10,705.92 : x
  2. Step 2: Convert to fraction form
    38,407.92/57,611.79 = 10,705.92/x
  3. Step 3: Cross multiply
    38,407.92x = 57,611.79 × 10,705.92
  4. Step 4: Simplify right side
    38,407.92x = 616,787,214.80
  5. Step 5: Solve for x
    x = 616,787,214.80/38,407.92
  6. Step 6: Final answer
    x = 16,058.85

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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.