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Finding the Fourth Proportional to 17,663.91, 24,350.54 and 12,342.21

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Solution

The fourth proportional to 17,663.91, 24,350.54 and 12,342.21 is: 17,014.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,663.91 : 24,350.54 = 12,342.21 : x
  2. Step 2: Convert to fraction form
    17,663.91/24,350.54 = 12,342.21/x
  3. Step 3: Cross multiply
    17,663.91x = 24,350.54 × 12,342.21
  4. Step 4: Simplify right side
    17,663.91x = 300,539,416.58
  5. Step 5: Solve for x
    x = 300,539,416.58/17,663.91
  6. Step 6: Final answer
    x = 17,014.32

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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.