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Finding the Fourth Proportional to 14,632.13, 20,192.20 and 7,917.61

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Solution

The fourth proportional to 14,632.13, 20,192.20 and 7,917.61 is: 10,926.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,632.13 : 20,192.20 = 7,917.61 : x
  2. Step 2: Convert to fraction form
    14,632.13/20,192.20 = 7,917.61/x
  3. Step 3: Cross multiply
    14,632.13x = 20,192.20 × 7,917.61
  4. Step 4: Simplify right side
    14,632.13x = 159,873,964.64
  5. Step 5: Solve for x
    x = 159,873,964.64/14,632.13
  6. Step 6: Final answer
    x = 10,926.23

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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.