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Finding the Fourth Proportional to 15,092.33, 20,804.65 and 11,900.12

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Solution

The fourth proportional to 15,092.33, 20,804.65 and 11,900.12 is: 16,404.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,092.33 : 20,804.65 = 11,900.12 : x
  2. Step 2: Convert to fraction form
    15,092.33/20,804.65 = 11,900.12/x
  3. Step 3: Cross multiply
    15,092.33x = 20,804.65 × 11,900.12
  4. Step 4: Simplify right side
    15,092.33x = 247,577,697.78
  5. Step 5: Solve for x
    x = 247,577,697.78/15,092.33
  6. Step 6: Final answer
    x = 16,404.21

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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.