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Finding the Fourth Proportional to 75,610.40, 113,410.80 and 25,690.40

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Solution

The fourth proportional to 75,610.40, 113,410.80 and 25,690.40 is: 38,533.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,610.40 : 113,410.80 = 25,690.40 : x
  2. Step 2: Convert to fraction form
    75,610.40/113,410.80 = 25,690.40/x
  3. Step 3: Cross multiply
    75,610.40x = 113,410.80 × 25,690.40
  4. Step 4: Simplify right side
    75,610.40x = 2,913,568,816.32
  5. Step 5: Solve for x
    x = 2,913,568,816.32/75,610.40
  6. Step 6: Final answer
    x = 38,533.97

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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.