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Finding the Fourth Proportional to 45,793.20, 68,689.80 and 22,407.60

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Solution

The fourth proportional to 45,793.20, 68,689.80 and 22,407.60 is: 33,611.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,793.20 : 68,689.80 = 22,407.60 : x
  2. Step 2: Convert to fraction form
    45,793.20/68,689.80 = 22,407.60/x
  3. Step 3: Cross multiply
    45,793.20x = 68,689.80 × 22,407.60
  4. Step 4: Simplify right side
    45,793.20x = 1,539,173,562.48
  5. Step 5: Solve for x
    x = 1,539,173,562.48/45,793.20
  6. Step 6: Final answer
    x = 33,611.40

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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.