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Finding the Fourth Proportional to 17,908.85, 26,854.04 and 8,039.66

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Solution

The fourth proportional to 17,908.85, 26,854.04 and 8,039.66 is: 12,055.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,908.85 : 26,854.04 = 8,039.66 : x
  2. Step 2: Convert to fraction form
    17,908.85/26,854.04 = 8,039.66/x
  3. Step 3: Cross multiply
    17,908.85x = 26,854.04 × 8,039.66
  4. Step 4: Simplify right side
    17,908.85x = 215,897,176.76
  5. Step 5: Solve for x
    x = 215,897,176.76/17,908.85
  6. Step 6: Final answer
    x = 12,055.34

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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.