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Finding the Fourth Proportional to 61,684.64, 92,535.70 and 18,993.58

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Solution

The fourth proportional to 61,684.64, 92,535.70 and 18,993.58 is: 28,493.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,684.64 : 92,535.70 = 18,993.58 : x
  2. Step 2: Convert to fraction form
    61,684.64/92,535.70 = 18,993.58/x
  3. Step 3: Cross multiply
    61,684.64x = 92,535.70 × 18,993.58
  4. Step 4: Simplify right side
    61,684.64x = 1,757,584,220.81
  5. Step 5: Solve for x
    x = 1,757,584,220.81/61,684.64
  6. Step 6: Final answer
    x = 28,493.06

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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.