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Finding the Fourth Proportional to 15,049.25, 20,768.15 and 8,335.00

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Solution

The fourth proportional to 15,049.25, 20,768.15 and 8,335.00 is: 11,502.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,049.25 : 20,768.15 = 8,335.00 : x
  2. Step 2: Convert to fraction form
    15,049.25/20,768.15 = 8,335.00/x
  3. Step 3: Cross multiply
    15,049.25x = 20,768.15 × 8,335.00
  4. Step 4: Simplify right side
    15,049.25x = 173,102,436.65
  5. Step 5: Solve for x
    x = 173,102,436.65/15,049.25
  6. Step 6: Final answer
    x = 11,502.39

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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.