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Finding the Fourth Proportional to 18,079.54, 27,113.06 and 8,590.76

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Solution

The fourth proportional to 18,079.54, 27,113.06 and 8,590.76 is: 12,883.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,079.54 : 27,113.06 = 8,590.76 : x
  2. Step 2: Convert to fraction form
    18,079.54/27,113.06 = 8,590.76/x
  3. Step 3: Cross multiply
    18,079.54x = 27,113.06 × 8,590.76
  4. Step 4: Simplify right side
    18,079.54x = 232,921,791.33
  5. Step 5: Solve for x
    x = 232,921,791.33/18,079.54
  6. Step 6: Final answer
    x = 12,883.17

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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.