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Finding the Fourth Proportional to 52,584.80, 78,860.18 and 17,516.25

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Solution

The fourth proportional to 52,584.80, 78,860.18 and 17,516.25 is: 26,268.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,584.80 : 78,860.18 = 17,516.25 : x
  2. Step 2: Convert to fraction form
    52,584.80/78,860.18 = 17,516.25/x
  3. Step 3: Cross multiply
    52,584.80x = 78,860.18 × 17,516.25
  4. Step 4: Simplify right side
    52,584.80x = 1,381,334,671.72
  5. Step 5: Solve for x
    x = 1,381,334,671.72/52,584.80
  6. Step 6: Final answer
    x = 26,268.71

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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.