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Finding the Fourth Proportional to 75,987.60, 114,046.20 and 33,932.40

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Solution

The fourth proportional to 75,987.60, 114,046.20 and 33,932.40 is: 50,927.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,987.60 : 114,046.20 = 33,932.40 : x
  2. Step 2: Convert to fraction form
    75,987.60/114,046.20 = 33,932.40/x
  3. Step 3: Cross multiply
    75,987.60x = 114,046.20 × 33,932.40
  4. Step 4: Simplify right side
    75,987.60x = 3,869,861,276.88
  5. Step 5: Solve for x
    x = 3,869,861,276.88/75,987.60
  6. Step 6: Final answer
    x = 50,927.54

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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.