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Finding the Fourth Proportional to 57,988.42, 86,834.93 and 38,207.02

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Solution

The fourth proportional to 57,988.42, 86,834.93 and 38,207.02 is: 57,213.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,988.42 : 86,834.93 = 38,207.02 : x
  2. Step 2: Convert to fraction form
    57,988.42/86,834.93 = 38,207.02/x
  3. Step 3: Cross multiply
    57,988.42x = 86,834.93 × 38,207.02
  4. Step 4: Simplify right side
    57,988.42x = 3,317,703,473.03
  5. Step 5: Solve for x
    x = 3,317,703,473.03/57,988.42
  6. Step 6: Final answer
    x = 57,213.21

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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.