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Finding the Fourth Proportional to 14,851.54, 20,494.49 and 8,879.68

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Solution

The fourth proportional to 14,851.54, 20,494.49 and 8,879.68 is: 12,253.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,851.54 : 20,494.49 = 8,879.68 : x
  2. Step 2: Convert to fraction form
    14,851.54/20,494.49 = 8,879.68/x
  3. Step 3: Cross multiply
    14,851.54x = 20,494.49 × 8,879.68
  4. Step 4: Simplify right side
    14,851.54x = 181,984,432.69
  5. Step 5: Solve for x
    x = 181,984,432.69/14,851.54
  6. Step 6: Final answer
    x = 12,253.58

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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.