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Finding the Fourth Proportional to 75,990.95, 113,987.99 and 23,400.38

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Solution

The fourth proportional to 75,990.95, 113,987.99 and 23,400.38 is: 35,101.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,990.95 : 113,987.99 = 23,400.38 : x
  2. Step 2: Convert to fraction form
    75,990.95/113,987.99 = 23,400.38/x
  3. Step 3: Cross multiply
    75,990.95x = 113,987.99 × 23,400.38
  4. Step 4: Simplify right side
    75,990.95x = 2,667,361,594.49
  5. Step 5: Solve for x
    x = 2,667,361,594.49/75,990.95
  6. Step 6: Final answer
    x = 35,101.05

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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.