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Finding the Fourth Proportional to 75,857.40, 113,591.70 and 56,028.60

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Solution

The fourth proportional to 75,857.40, 113,591.70 and 56,028.60 is: 83,899.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,857.40 : 113,591.70 = 56,028.60 : x
  2. Step 2: Convert to fraction form
    75,857.40/113,591.70 = 56,028.60/x
  3. Step 3: Cross multiply
    75,857.40x = 113,591.70 × 56,028.60
  4. Step 4: Simplify right side
    75,857.40x = 6,364,383,922.62
  5. Step 5: Solve for x
    x = 6,364,383,922.62/75,857.40
  6. Step 6: Final answer
    x = 83,899.32

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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.