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Finding the Fourth Proportional to 18,333.08, 25,299.76 and 9,949.60

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Solution

The fourth proportional to 18,333.08, 25,299.76 and 9,949.60 is: 13,730.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,333.08 : 25,299.76 = 9,949.60 : x
  2. Step 2: Convert to fraction form
    18,333.08/25,299.76 = 9,949.60/x
  3. Step 3: Cross multiply
    18,333.08x = 25,299.76 × 9,949.60
  4. Step 4: Simplify right side
    18,333.08x = 251,722,492.10
  5. Step 5: Solve for x
    x = 251,722,492.10/18,333.08
  6. Step 6: Final answer
    x = 13,730.51

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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.