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Finding the Fourth Proportional to 15,047.49, 20,760.44 and 8,673.89

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Solution

The fourth proportional to 15,047.49, 20,760.44 and 8,673.89 is: 11,967.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,047.49 : 20,760.44 = 8,673.89 : x
  2. Step 2: Convert to fraction form
    15,047.49/20,760.44 = 8,673.89/x
  3. Step 3: Cross multiply
    15,047.49x = 20,760.44 × 8,673.89
  4. Step 4: Simplify right side
    15,047.49x = 180,073,625.74
  5. Step 5: Solve for x
    x = 180,073,625.74/15,047.49
  6. Step 6: Final answer
    x = 11,967.02

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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.