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Finding the Fourth Proportional to 18,015.13, 24,861.12 and 9,949.32

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Solution

The fourth proportional to 18,015.13, 24,861.12 and 9,949.32 is: 13,730.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,015.13 : 24,861.12 = 9,949.32 : x
  2. Step 2: Convert to fraction form
    18,015.13/24,861.12 = 9,949.32/x
  3. Step 3: Cross multiply
    18,015.13x = 24,861.12 × 9,949.32
  4. Step 4: Simplify right side
    18,015.13x = 247,351,275.72
  5. Step 5: Solve for x
    x = 247,351,275.72/18,015.13
  6. Step 6: Final answer
    x = 13,730.20

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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.