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Finding the Fourth Proportional to 14,245.40, 19,659.41 and 8,581.93

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Solution

The fourth proportional to 14,245.40, 19,659.41 and 8,581.93 is: 11,843.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,245.40 : 19,659.41 = 8,581.93 : x
  2. Step 2: Convert to fraction form
    14,245.40/19,659.41 = 8,581.93/x
  3. Step 3: Cross multiply
    14,245.40x = 19,659.41 × 8,581.93
  4. Step 4: Simplify right side
    14,245.40x = 168,715,680.46
  5. Step 5: Solve for x
    x = 168,715,680.46/14,245.40
  6. Step 6: Final answer
    x = 11,843.52

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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.