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Finding the Fourth Proportional to 15,092.44, 20,828.48 and 9,125.57

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Solution

The fourth proportional to 15,092.44, 20,828.48 and 9,125.57 is: 12,593.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,092.44 : 20,828.48 = 9,125.57 : x
  2. Step 2: Convert to fraction form
    15,092.44/20,828.48 = 9,125.57/x
  3. Step 3: Cross multiply
    15,092.44x = 20,828.48 × 9,125.57
  4. Step 4: Simplify right side
    15,092.44x = 190,071,758.68
  5. Step 5: Solve for x
    x = 190,071,758.68/15,092.44
  6. Step 6: Final answer
    x = 12,593.84

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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.