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Finding the Fourth Proportional to 25,156.97, 34,704.09 and 15,083.09

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Solution

The fourth proportional to 25,156.97, 34,704.09 and 15,083.09 is: 20,807.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,156.97 : 34,704.09 = 15,083.09 : x
  2. Step 2: Convert to fraction form
    25,156.97/34,704.09 = 15,083.09/x
  3. Step 3: Cross multiply
    25,156.97x = 34,704.09 × 15,083.09
  4. Step 4: Simplify right side
    25,156.97x = 523,444,999.60
  5. Step 5: Solve for x
    x = 523,444,999.60/25,156.97
  6. Step 6: Final answer
    x = 20,807.16

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1.5x scale

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.