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Finding the Fourth Proportional to 57,393.40, 79,175.56 and 38,282

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Solution

The fourth proportional to 57,393.40, 79,175.56 and 38,282 is: 52,810.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,393.40 : 79,175.56 = 38,282 : x
  2. Step 2: Convert to fraction form
    57,393.40/79,175.56 = 38,282/x
  3. Step 3: Cross multiply
    57,393.40x = 79,175.56 × 38,282
  4. Step 4: Simplify right side
    57,393.40x = 3,030,998,787.92
  5. Step 5: Solve for x
    x = 3,030,998,787.92/57,393.40
  6. Step 6: Final answer
    x = 52,810.93

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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.