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Finding the Fourth Proportional to 14,632.41, 20,192.67 and 7,918.05

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Solution

The fourth proportional to 14,632.41, 20,192.67 and 7,918.05 is: 10,926.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,632.41 : 20,192.67 = 7,918.05 : x
  2. Step 2: Convert to fraction form
    14,632.41/20,192.67 = 7,918.05/x
  3. Step 3: Cross multiply
    14,632.41x = 20,192.67 × 7,918.05
  4. Step 4: Simplify right side
    14,632.41x = 159,886,570.69
  5. Step 5: Solve for x
    x = 159,886,570.69/14,632.41
  6. Step 6: Final answer
    x = 10,926.88

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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.