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Finding the Fourth Proportional to 36,863.48, 50,872.14 and 20,948.28

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Solution

The fourth proportional to 36,863.48, 50,872.14 and 20,948.28 is: 28,908.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,863.48 : 50,872.14 = 20,948.28 : x
  2. Step 2: Convert to fraction form
    36,863.48/50,872.14 = 20,948.28/x
  3. Step 3: Cross multiply
    36,863.48x = 50,872.14 × 20,948.28
  4. Step 4: Simplify right side
    36,863.48x = 1,065,683,832.92
  5. Step 5: Solve for x
    x = 1,065,683,832.92/36,863.48
  6. Step 6: Final answer
    x = 28,908.93

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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.