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Finding the Fourth Proportional to 18,555.45, 25,593.67 and 11,477.67

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Solution

The fourth proportional to 18,555.45, 25,593.67 and 11,477.67 is: 15,831.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555.45 : 25,593.67 = 11,477.67 : x
  2. Step 2: Convert to fraction form
    18,555.45/25,593.67 = 11,477.67/x
  3. Step 3: Cross multiply
    18,555.45x = 25,593.67 × 11,477.67
  4. Step 4: Simplify right side
    18,555.45x = 293,755,698.35
  5. Step 5: Solve for x
    x = 293,755,698.35/18,555.45
  6. Step 6: Final answer
    x = 15,831.24

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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.