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Finding the Fourth Proportional to 18,065.08, 24,932.10 and 10,991.08

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Solution

The fourth proportional to 18,065.08, 24,932.10 and 10,991.08 is: 15,169.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,065.08 : 24,932.10 = 10,991.08 : x
  2. Step 2: Convert to fraction form
    18,065.08/24,932.10 = 10,991.08/x
  3. Step 3: Cross multiply
    18,065.08x = 24,932.10 × 10,991.08
  4. Step 4: Simplify right side
    18,065.08x = 274,030,705.67
  5. Step 5: Solve for x
    x = 274,030,705.67/18,065.08
  6. Step 6: Final answer
    x = 15,169.08

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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.