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Finding the Fourth Proportional to 14,712.66, 20,313.17 and 11,349.62

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Solution

The fourth proportional to 14,712.66, 20,313.17 and 11,349.62 is: 15,669.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,712.66 : 20,313.17 = 11,349.62 : x
  2. Step 2: Convert to fraction form
    14,712.66/20,313.17 = 11,349.62/x
  3. Step 3: Cross multiply
    14,712.66x = 20,313.17 × 11,349.62
  4. Step 4: Simplify right side
    14,712.66x = 230,546,760.50
  5. Step 5: Solve for x
    x = 230,546,760.50/14,712.66
  6. Step 6: Final answer
    x = 15,669.96

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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.