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Finding the Fourth Proportional to 40,532.70, 60,799.05 and 28,066.80

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Solution

The fourth proportional to 40,532.70, 60,799.05 and 28,066.80 is: 42,100.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,532.70 : 60,799.05 = 28,066.80 : x
  2. Step 2: Convert to fraction form
    40,532.70/60,799.05 = 28,066.80/x
  3. Step 3: Cross multiply
    40,532.70x = 60,799.05 × 28,066.80
  4. Step 4: Simplify right side
    40,532.70x = 1,706,434,776.54
  5. Step 5: Solve for x
    x = 1,706,434,776.54/40,532.70
  6. Step 6: Final answer
    x = 42,100.20

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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.