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Finding the Fourth Proportional to 18,300.24, 25,247.16 and 11,934.24

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Solution

The fourth proportional to 18,300.24, 25,247.16 and 11,934.24 is: 16,464.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,300.24 : 25,247.16 = 11,934.24 : x
  2. Step 2: Convert to fraction form
    18,300.24/25,247.16 = 11,934.24/x
  3. Step 3: Cross multiply
    18,300.24x = 25,247.16 × 11,934.24
  4. Step 4: Simplify right side
    18,300.24x = 301,305,666.76
  5. Step 5: Solve for x
    x = 301,305,666.76/18,300.24
  6. Step 6: Final answer
    x = 16,464.57

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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.