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Finding the Fourth Proportional to 63,674.84, 87,874.26 and 35,381

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Solution

The fourth proportional to 63,674.84, 87,874.26 and 35,381 is: 48,827.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,674.84 : 87,874.26 = 35,381 : x
  2. Step 2: Convert to fraction form
    63,674.84/87,874.26 = 35,381/x
  3. Step 3: Cross multiply
    63,674.84x = 87,874.26 × 35,381
  4. Step 4: Simplify right side
    63,674.84x = 3,109,079,193.06
  5. Step 5: Solve for x
    x = 3,109,079,193.06/63,674.84
  6. Step 6: Final answer
    x = 48,827.44

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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.