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Finding the Fourth Proportional to 57,869.84, 79,893.84 and 38,503.96

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Solution

The fourth proportional to 57,869.84, 79,893.84 and 38,503.96 is: 53,157.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,869.84 : 79,893.84 = 38,503.96 : x
  2. Step 2: Convert to fraction form
    57,869.84/79,893.84 = 38,503.96/x
  3. Step 3: Cross multiply
    57,869.84x = 79,893.84 × 38,503.96
  4. Step 4: Simplify right side
    57,869.84x = 3,076,229,164.26
  5. Step 5: Solve for x
    x = 3,076,229,164.26/57,869.84
  6. Step 6: Final answer
    x = 53,157.72

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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.