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Finding the Fourth Proportional to 53,801.64, 80,715.39 and 16,865.64

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Solution

The fourth proportional to 53,801.64, 80,715.39 and 16,865.64 is: 25,302.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,801.64 : 80,715.39 = 16,865.64 : x
  2. Step 2: Convert to fraction form
    53,801.64/80,715.39 = 16,865.64/x
  3. Step 3: Cross multiply
    53,801.64x = 80,715.39 × 16,865.64
  4. Step 4: Simplify right side
    53,801.64x = 1,361,316,710.20
  5. Step 5: Solve for x
    x = 1,361,316,710.20/53,801.64
  6. Step 6: Final answer
    x = 25,302.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.