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Finding the Fourth Proportional to 14,679.60, 20,258.84 and 8,306.18

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Solution

The fourth proportional to 14,679.60, 20,258.84 and 8,306.18 is: 11,463.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,679.60 : 20,258.84 = 8,306.18 : x
  2. Step 2: Convert to fraction form
    14,679.60/20,258.84 = 8,306.18/x
  3. Step 3: Cross multiply
    14,679.60x = 20,258.84 × 8,306.18
  4. Step 4: Simplify right side
    14,679.60x = 168,273,571.63
  5. Step 5: Solve for x
    x = 168,273,571.63/14,679.60
  6. Step 6: Final answer
    x = 11,463.09

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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.