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Finding the Fourth Proportional to 18,440.87, 25,449.12 and 10,483.83

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Solution

The fourth proportional to 18,440.87, 25,449.12 and 10,483.83 is: 14,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,440.87 : 25,449.12 = 10,483.83 : x
  2. Step 2: Convert to fraction form
    18,440.87/25,449.12 = 10,483.83/x
  3. Step 3: Cross multiply
    18,440.87x = 25,449.12 × 10,483.83
  4. Step 4: Simplify right side
    18,440.87x = 266,804,247.73
  5. Step 5: Solve for x
    x = 266,804,247.73/18,440.87
  6. Step 6: Final answer
    x = 14,468.10

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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.