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Finding the Fourth Proportional to 17,499.75, 26,249.63 and 5,187.75

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Solution

The fourth proportional to 17,499.75, 26,249.63 and 5,187.75 is: 7,781.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,499.75 : 26,249.63 = 5,187.75 : x
  2. Step 2: Convert to fraction form
    17,499.75/26,249.63 = 5,187.75/x
  3. Step 3: Cross multiply
    17,499.75x = 26,249.63 × 5,187.75
  4. Step 4: Simplify right side
    17,499.75x = 136,176,518.03
  5. Step 5: Solve for x
    x = 136,176,518.03/17,499.75
  6. Step 6: Final answer
    x = 7,781.63

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Half scale
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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.