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Finding the Fourth Proportional to 33,929.36, 46,820.76 and 18,820.76

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Solution

The fourth proportional to 33,929.36, 46,820.76 and 18,820.76 is: 25,971.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,929.36 : 46,820.76 = 18,820.76 : x
  2. Step 2: Convert to fraction form
    33,929.36/46,820.76 = 18,820.76/x
  3. Step 3: Cross multiply
    33,929.36x = 46,820.76 × 18,820.76
  4. Step 4: Simplify right side
    33,929.36x = 881,202,286.98
  5. Step 5: Solve for x
    x = 881,202,286.98/33,929.36
  6. Step 6: Final answer
    x = 25,971.67

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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.