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Finding the Fourth Proportional to 15,059.88, 20,786.58 and 9,754.92

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Solution

The fourth proportional to 15,059.88, 20,786.58 and 9,754.92 is: 13,464.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,059.88 : 20,786.58 = 9,754.92 : x
  2. Step 2: Convert to fraction form
    15,059.88/20,786.58 = 9,754.92/x
  3. Step 3: Cross multiply
    15,059.88x = 20,786.58 × 9,754.92
  4. Step 4: Simplify right side
    15,059.88x = 202,771,424.97
  5. Step 5: Solve for x
    x = 202,771,424.97/15,059.88
  6. Step 6: Final answer
    x = 13,464.35

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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.