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Finding the Fourth Proportional to 75,879.96, 113,820.18 and 25,996.08

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Solution

The fourth proportional to 75,879.96, 113,820.18 and 25,996.08 is: 38,994.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,879.96 : 113,820.18 = 25,996.08 : x
  2. Step 2: Convert to fraction form
    75,879.96/113,820.18 = 25,996.08/x
  3. Step 3: Cross multiply
    75,879.96x = 113,820.18 × 25,996.08
  4. Step 4: Simplify right side
    75,879.96x = 2,958,878,504.89
  5. Step 5: Solve for x
    x = 2,958,878,504.89/75,879.96
  6. Step 6: Final answer
    x = 38,994.20

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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.