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Finding the Fourth Proportional to 40,447.60, 60,673.20 and 13,793.20

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Solution

The fourth proportional to 40,447.60, 60,673.20 and 13,793.20 is: 20,690.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,447.60 : 60,673.20 = 13,793.20 : x
  2. Step 2: Convert to fraction form
    40,447.60/60,673.20 = 13,793.20/x
  3. Step 3: Cross multiply
    40,447.60x = 60,673.20 × 13,793.20
  4. Step 4: Simplify right side
    40,447.60x = 836,877,582.24
  5. Step 5: Solve for x
    x = 836,877,582.24/40,447.60
  6. Step 6: Final answer
    x = 20,690.41

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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.