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Finding the Fourth Proportional to 75,479.82, 113,212.74 and 25,554.21

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Solution

The fourth proportional to 75,479.82, 113,212.74 and 25,554.21 is: 38,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,479.82 : 113,212.74 = 25,554.21 : x
  2. Step 2: Convert to fraction form
    75,479.82/113,212.74 = 25,554.21/x
  3. Step 3: Cross multiply
    75,479.82x = 113,212.74 × 25,554.21
  4. Step 4: Simplify right side
    75,479.82x = 2,893,062,132.64
  5. Step 5: Solve for x
    x = 2,893,062,132.64/75,479.82
  6. Step 6: Final answer
    x = 38,328.95

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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.