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Finding the Fourth Proportional to 59,793.88, 89,689.86 and 20,378.44

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Solution

The fourth proportional to 59,793.88, 89,689.86 and 20,378.44 is: 30,567.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,793.88 : 89,689.86 = 20,378.44 : x
  2. Step 2: Convert to fraction form
    59,793.88/89,689.86 = 20,378.44/x
  3. Step 3: Cross multiply
    59,793.88x = 89,689.86 × 20,378.44
  4. Step 4: Simplify right side
    59,793.88x = 1,827,739,430.62
  5. Step 5: Solve for x
    x = 1,827,739,430.62/59,793.88
  6. Step 6: Final answer
    x = 30,567.33

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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.