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Finding the Fourth Proportional to 18,646.02, 25,735.04 and 11,934.49

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Solution

The fourth proportional to 18,646.02, 25,735.04 and 11,934.49 is: 16,471.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,646.02 : 25,735.04 = 11,934.49 : x
  2. Step 2: Convert to fraction form
    18,646.02/25,735.04 = 11,934.49/x
  3. Step 3: Cross multiply
    18,646.02x = 25,735.04 × 11,934.49
  4. Step 4: Simplify right side
    18,646.02x = 307,134,577.53
  5. Step 5: Solve for x
    x = 307,134,577.53/18,646.02
  6. Step 6: Final answer
    x = 16,471.86

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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.