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Finding the Fourth Proportional to 18,074.56, 24,939.35 and 11,356.30

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Solution

The fourth proportional to 18,074.56, 24,939.35 and 11,356.30 is: 15,669.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,074.56 : 24,939.35 = 11,356.30 : x
  2. Step 2: Convert to fraction form
    18,074.56/24,939.35 = 11,356.30/x
  3. Step 3: Cross multiply
    18,074.56x = 24,939.35 × 11,356.30
  4. Step 4: Simplify right side
    18,074.56x = 283,218,685.15
  5. Step 5: Solve for x
    x = 283,218,685.15/18,074.56
  6. Step 6: Final answer
    x = 15,669.46

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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.