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Finding the Fourth Proportional to 18,031.23, 24,883.04 and 9,964.66

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Solution

The fourth proportional to 18,031.23, 24,883.04 and 9,964.66 is: 13,751.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,031.23 : 24,883.04 = 9,964.66 : x
  2. Step 2: Convert to fraction form
    18,031.23/24,883.04 = 9,964.66/x
  3. Step 3: Cross multiply
    18,031.23x = 24,883.04 × 9,964.66
  4. Step 4: Simplify right side
    18,031.23x = 247,950,983.54
  5. Step 5: Solve for x
    x = 247,950,983.54/18,031.23
  6. Step 6: Final answer
    x = 13,751.20

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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.