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Finding the Fourth Proportional to 18,031.89, 24,883.89 and 10,074.03

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Solution

The fourth proportional to 18,031.89, 24,883.89 and 10,074.03 is: 13,902.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,031.89 : 24,883.89 = 10,074.03 : x
  2. Step 2: Convert to fraction form
    18,031.89/24,883.89 = 10,074.03/x
  3. Step 3: Cross multiply
    18,031.89x = 24,883.89 × 10,074.03
  4. Step 4: Simplify right side
    18,031.89x = 250,681,054.38
  5. Step 5: Solve for x
    x = 250,681,054.38/18,031.89
  6. Step 6: Final answer
    x = 13,902.10

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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.