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Finding the Fourth Proportional to 14,973.20, 20,662.06 and 8,258.88

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Solution

The fourth proportional to 14,973.20, 20,662.06 and 8,258.88 is: 11,396.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,973.20 : 20,662.06 = 8,258.88 : x
  2. Step 2: Convert to fraction form
    14,973.20/20,662.06 = 8,258.88/x
  3. Step 3: Cross multiply
    14,973.20x = 20,662.06 × 8,258.88
  4. Step 4: Simplify right side
    14,973.20x = 170,645,474.09
  5. Step 5: Solve for x
    x = 170,645,474.09/14,973.20
  6. Step 6: Final answer
    x = 11,396.73

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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.