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Finding the Fourth Proportional to 48,989.80, 73,487.10 and 25,661.80

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Solution

The fourth proportional to 48,989.80, 73,487.10 and 25,661.80 is: 38,493.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,989.80 : 73,487.10 = 25,661.80 : x
  2. Step 2: Convert to fraction form
    48,989.80/73,487.10 = 25,661.80/x
  3. Step 3: Cross multiply
    48,989.80x = 73,487.10 × 25,661.80
  4. Step 4: Simplify right side
    48,989.80x = 1,885,811,262.78
  5. Step 5: Solve for x
    x = 1,885,811,262.78/48,989.80
  6. Step 6: Final answer
    x = 38,493.96

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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.