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Finding the Fourth Proportional to 24,393.76, 33,663.20 and 13,215.76

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Solution

The fourth proportional to 24,393.76, 33,663.20 and 13,215.76 is: 18,237.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,393.76 : 33,663.20 = 13,215.76 : x
  2. Step 2: Convert to fraction form
    24,393.76/33,663.20 = 13,215.76/x
  3. Step 3: Cross multiply
    24,393.76x = 33,663.20 × 13,215.76
  4. Step 4: Simplify right side
    24,393.76x = 444,884,621.80
  5. Step 5: Solve for x
    x = 444,884,621.80/24,393.76
  6. Step 6: Final answer
    x = 18,237.64

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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.