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Finding the Fourth Proportional to 48,998.21, 73,498.17 and 13,938.80

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Solution

The fourth proportional to 48,998.21, 73,498.17 and 13,938.80 is: 20,908.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,998.21 : 73,498.17 = 13,938.80 : x
  2. Step 2: Convert to fraction form
    48,998.21/73,498.17 = 13,938.80/x
  3. Step 3: Cross multiply
    48,998.21x = 73,498.17 × 13,938.80
  4. Step 4: Simplify right side
    48,998.21x = 1,024,476,292.00
  5. Step 5: Solve for x
    x = 1,024,476,292.00/48,998.21
  6. Step 6: Final answer
    x = 20,908.44

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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.