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Finding the Fourth Proportional to 18,038.82, 27,051.32 and 8,672.92

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Solution

The fourth proportional to 18,038.82, 27,051.32 and 8,672.92 is: 13,006.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,038.82 : 27,051.32 = 8,672.92 : x
  2. Step 2: Convert to fraction form
    18,038.82/27,051.32 = 8,672.92/x
  3. Step 3: Cross multiply
    18,038.82x = 27,051.32 × 8,672.92
  4. Step 4: Simplify right side
    18,038.82x = 234,613,934.25
  5. Step 5: Solve for x
    x = 234,613,934.25/18,038.82
  6. Step 6: Final answer
    x = 13,006.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.