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Finding the Fourth Proportional to 15,011.75, 20,724.44 and 9,044.88

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Solution

The fourth proportional to 15,011.75, 20,724.44 and 9,044.88 is: 12,486.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,011.75 : 20,724.44 = 9,044.88 : x
  2. Step 2: Convert to fraction form
    15,011.75/20,724.44 = 9,044.88/x
  3. Step 3: Cross multiply
    15,011.75x = 20,724.44 × 9,044.88
  4. Step 4: Simplify right side
    15,011.75x = 187,450,027.64
  5. Step 5: Solve for x
    x = 187,450,027.64/15,011.75
  6. Step 6: Final answer
    x = 12,486.89

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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.