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Finding the Fourth Proportional to 60,241.76, 90,367.68 and 20,799.20

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Solution

The fourth proportional to 60,241.76, 90,367.68 and 20,799.20 is: 31,200.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,241.76 : 90,367.68 = 20,799.20 : x
  2. Step 2: Convert to fraction form
    60,241.76/90,367.68 = 20,799.20/x
  3. Step 3: Cross multiply
    60,241.76x = 90,367.68 × 20,799.20
  4. Step 4: Simplify right side
    60,241.76x = 1,879,575,449.86
  5. Step 5: Solve for x
    x = 1,879,575,449.86/60,241.76
  6. Step 6: Final answer
    x = 31,200.54

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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.