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Finding the Fourth Proportional to 23,489.91, 32,416.03 and 12,879.52

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Solution

The fourth proportional to 23,489.91, 32,416.03 and 12,879.52 is: 17,773.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,489.91 : 32,416.03 = 12,879.52 : x
  2. Step 2: Convert to fraction form
    23,489.91/32,416.03 = 12,879.52/x
  3. Step 3: Cross multiply
    23,489.91x = 32,416.03 × 12,879.52
  4. Step 4: Simplify right side
    23,489.91x = 417,502,906.71
  5. Step 5: Solve for x
    x = 417,502,906.71/23,489.91
  6. Step 6: Final answer
    x = 17,773.71

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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.