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Finding the Fourth Proportional to 50,649.40, 75,974.10 and 15,599.80

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Solution

The fourth proportional to 50,649.40, 75,974.10 and 15,599.80 is: 23,399.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,649.40 : 75,974.10 = 15,599.80 : x
  2. Step 2: Convert to fraction form
    50,649.40/75,974.10 = 15,599.80/x
  3. Step 3: Cross multiply
    50,649.40x = 75,974.10 × 15,599.80
  4. Step 4: Simplify right side
    50,649.40x = 1,185,180,765.18
  5. Step 5: Solve for x
    x = 1,185,180,765.18/50,649.40
  6. Step 6: Final answer
    x = 23,399.70

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Double scale
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Similar ratio
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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.