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Finding the Fourth Proportional to 24,393.63, 33,663.26 and 13,638.88

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Solution

The fourth proportional to 24,393.63, 33,663.26 and 13,638.88 is: 18,821.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,393.63 : 33,663.26 = 13,638.88 : x
  2. Step 2: Convert to fraction form
    24,393.63/33,663.26 = 13,638.88/x
  3. Step 3: Cross multiply
    24,393.63x = 33,663.26 × 13,638.88
  4. Step 4: Simplify right side
    24,393.63x = 459,129,213.61
  5. Step 5: Solve for x
    x = 459,129,213.61/24,393.63
  6. Step 6: Final answer
    x = 18,821.69

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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.