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Finding the Fourth Proportional to 48,893.68, 67,474.89 and 28,752.42

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Solution

The fourth proportional to 48,893.68, 67,474.89 and 28,752.42 is: 39,679.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,893.68 : 67,474.89 = 28,752.42 : x
  2. Step 2: Convert to fraction form
    48,893.68/67,474.89 = 28,752.42/x
  3. Step 3: Cross multiply
    48,893.68x = 67,474.89 × 28,752.42
  4. Step 4: Simplify right side
    48,893.68x = 1,940,066,250.22
  5. Step 5: Solve for x
    x = 1,940,066,250.22/48,893.68
  6. Step 6: Final answer
    x = 39,679.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.