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Finding the Fourth Proportional to 14,910.58, 20,568.09 and 9,242.74

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Solution

The fourth proportional to 14,910.58, 20,568.09 and 9,242.74 is: 12,749.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,910.58 : 20,568.09 = 9,242.74 : x
  2. Step 2: Convert to fraction form
    14,910.58/20,568.09 = 9,242.74/x
  3. Step 3: Cross multiply
    14,910.58x = 20,568.09 × 9,242.74
  4. Step 4: Simplify right side
    14,910.58x = 190,105,508.17
  5. Step 5: Solve for x
    x = 190,105,508.17/14,910.58
  6. Step 6: Final answer
    x = 12,749.71

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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.