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Finding the Fourth Proportional to 18,317.76, 25,265.16 and 11,604.48

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Solution

The fourth proportional to 18,317.76, 25,265.16 and 11,604.48 is: 16,005.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,317.76 : 25,265.16 = 11,604.48 : x
  2. Step 2: Convert to fraction form
    18,317.76/25,265.16 = 11,604.48/x
  3. Step 3: Cross multiply
    18,317.76x = 25,265.16 × 11,604.48
  4. Step 4: Simplify right side
    18,317.76x = 293,189,043.92
  5. Step 5: Solve for x
    x = 293,189,043.92/18,317.76
  6. Step 6: Final answer
    x = 16,005.73

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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.