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Finding the Fourth Proportional to 36,785.48, 50,763.48 and 21,678.77

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Solution

The fourth proportional to 36,785.48, 50,763.48 and 21,678.77 is: 29,916.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,785.48 : 50,763.48 = 21,678.77 : x
  2. Step 2: Convert to fraction form
    36,785.48/50,763.48 = 21,678.77/x
  3. Step 3: Cross multiply
    36,785.48x = 50,763.48 × 21,678.77
  4. Step 4: Simplify right side
    36,785.48x = 1,100,489,934.23
  5. Step 5: Solve for x
    x = 1,100,489,934.23/36,785.48
  6. Step 6: Final answer
    x = 29,916.43

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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.