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Finding the Fourth Proportional to 65,341.33, 90,169.84 and 36,661.52

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Solution

The fourth proportional to 65,341.33, 90,169.84 and 36,661.52 is: 50,592.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,341.33 : 90,169.84 = 36,661.52 : x
  2. Step 2: Convert to fraction form
    65,341.33/90,169.84 = 36,661.52/x
  3. Step 3: Cross multiply
    65,341.33x = 90,169.84 × 36,661.52
  4. Step 4: Simplify right side
    65,341.33x = 3,305,763,392.56
  5. Step 5: Solve for x
    x = 3,305,763,392.56/65,341.33
  6. Step 6: Final answer
    x = 50,592.23

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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.