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Finding the Fourth Proportional to 86,249.25, 129,373.88 and 23,919.75

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Solution

The fourth proportional to 86,249.25, 129,373.88 and 23,919.75 is: 35,879.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,249.25 : 129,373.88 = 23,919.75 : x
  2. Step 2: Convert to fraction form
    86,249.25/129,373.88 = 23,919.75/x
  3. Step 3: Cross multiply
    86,249.25x = 129,373.88 × 23,919.75
  4. Step 4: Simplify right side
    86,249.25x = 3,094,590,746.53
  5. Step 5: Solve for x
    x = 3,094,590,746.53/86,249.25
  6. Step 6: Final answer
    x = 35,879.63

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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.