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Finding the Fourth Proportional to 16,767.70, 25,151.46 and 4,287.70

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Solution

The fourth proportional to 16,767.70, 25,151.46 and 4,287.70 is: 6,431.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,767.70 : 25,151.46 = 4,287.70 : x
  2. Step 2: Convert to fraction form
    16,767.70/25,151.46 = 4,287.70/x
  3. Step 3: Cross multiply
    16,767.70x = 25,151.46 × 4,287.70
  4. Step 4: Simplify right side
    16,767.70x = 107,841,930.40
  5. Step 5: Solve for x
    x = 107,841,930.40/16,767.70
  6. Step 6: Final answer
    x = 6,431.53

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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.