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Finding the Fourth Proportional to 18,111.68, 24,993.60 and 10,559.68

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Solution

The fourth proportional to 18,111.68, 24,993.60 and 10,559.68 is: 14,572.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,111.68 : 24,993.60 = 10,559.68 : x
  2. Step 2: Convert to fraction form
    18,111.68/24,993.60 = 10,559.68/x
  3. Step 3: Cross multiply
    18,111.68x = 24,993.60 × 10,559.68
  4. Step 4: Simplify right side
    18,111.68x = 263,924,418.05
  5. Step 5: Solve for x
    x = 263,924,418.05/18,111.68
  6. Step 6: Final answer
    x = 14,572.06

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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.