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Finding the Fourth Proportional to 36,802.81, 50,787.73 and 20,667.88

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Solution

The fourth proportional to 36,802.81, 50,787.73 and 20,667.88 is: 28,521.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,802.81 : 50,787.73 = 20,667.88 : x
  2. Step 2: Convert to fraction form
    36,802.81/50,787.73 = 20,667.88/x
  3. Step 3: Cross multiply
    36,802.81x = 50,787.73 × 20,667.88
  4. Step 4: Simplify right side
    36,802.81x = 1,049,674,709.11
  5. Step 5: Solve for x
    x = 1,049,674,709.11/36,802.81
  6. Step 6: Final answer
    x = 28,521.59

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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.