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Finding the Fourth Proportional to 15,062.45, 20,786.71 and 9,092.95

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Solution

The fourth proportional to 15,062.45, 20,786.71 and 9,092.95 is: 12,548.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,062.45 : 20,786.71 = 9,092.95 : x
  2. Step 2: Convert to fraction form
    15,062.45/20,786.71 = 9,092.95/x
  3. Step 3: Cross multiply
    15,062.45x = 20,786.71 × 9,092.95
  4. Step 4: Simplify right side
    15,062.45x = 189,012,440.00
  5. Step 5: Solve for x
    x = 189,012,440.00/15,062.45
  6. Step 6: Final answer
    x = 12,548.59

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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.