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Finding the Fourth Proportional to 30,352.92, 41,886.90 and 20,295.96

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Solution

The fourth proportional to 30,352.92, 41,886.90 and 20,295.96 is: 28,008.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,352.92 : 41,886.90 = 20,295.96 : x
  2. Step 2: Convert to fraction form
    30,352.92/41,886.90 = 20,295.96/x
  3. Step 3: Cross multiply
    30,352.92x = 41,886.90 × 20,295.96
  4. Step 4: Simplify right side
    30,352.92x = 850,134,846.92
  5. Step 5: Solve for x
    x = 850,134,846.92/30,352.92
  6. Step 6: Final answer
    x = 28,008.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.