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Finding the Fourth Proportional to 48,939.30, 73,408.95 and 25,611.30

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Solution

The fourth proportional to 48,939.30, 73,408.95 and 25,611.30 is: 38,416.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,939.30 : 73,408.95 = 25,611.30 : x
  2. Step 2: Convert to fraction form
    48,939.30/73,408.95 = 25,611.30/x
  3. Step 3: Cross multiply
    48,939.30x = 73,408.95 × 25,611.30
  4. Step 4: Simplify right side
    48,939.30x = 1,880,098,641.14
  5. Step 5: Solve for x
    x = 1,880,098,641.14/48,939.30
  6. Step 6: Final answer
    x = 38,416.95

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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.