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Finding the Fourth Proportional to 75,667.60, 113,566.20 and 33,612.40

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Solution

The fourth proportional to 75,667.60, 113,566.20 and 33,612.40 is: 50,447.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,667.60 : 113,566.20 = 33,612.40 : x
  2. Step 2: Convert to fraction form
    75,667.60/113,566.20 = 33,612.40/x
  3. Step 3: Cross multiply
    75,667.60x = 113,566.20 × 33,612.40
  4. Step 4: Simplify right side
    75,667.60x = 3,817,232,540.88
  5. Step 5: Solve for x
    x = 3,817,232,540.88/75,667.60
  6. Step 6: Final answer
    x = 50,447.38

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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.