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Finding the Fourth Proportional to 62,993.96, 86,931.66 and 34,699.64

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Solution

The fourth proportional to 62,993.96, 86,931.66 and 34,699.64 is: 47,885.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,993.96 : 86,931.66 = 34,699.64 : x
  2. Step 2: Convert to fraction form
    62,993.96/86,931.66 = 34,699.64/x
  3. Step 3: Cross multiply
    62,993.96x = 86,931.66 × 34,699.64
  4. Step 4: Simplify right side
    62,993.96x = 3,016,497,523.93
  5. Step 5: Solve for x
    x = 3,016,497,523.93/62,993.96
  6. Step 6: Final answer
    x = 47,885.51

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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.