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Finding the Fourth Proportional to 38,783.76, 58,175.62 and 11,081.76

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Solution

The fourth proportional to 38,783.76, 58,175.62 and 11,081.76 is: 16,622.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,783.76 : 58,175.62 = 11,081.76 : x
  2. Step 2: Convert to fraction form
    38,783.76/58,175.62 = 11,081.76/x
  3. Step 3: Cross multiply
    38,783.76x = 58,175.62 × 11,081.76
  4. Step 4: Simplify right side
    38,783.76x = 644,688,258.69
  5. Step 5: Solve for x
    x = 644,688,258.69/38,783.76
  6. Step 6: Final answer
    x = 16,622.63

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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.