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Finding the Fourth Proportional to 33,993.60, 50,995.84 and 11,820.16

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Solution

The fourth proportional to 33,993.60, 50,995.84 and 11,820.16 is: 17,732.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,993.60 : 50,995.84 = 11,820.16 : x
  2. Step 2: Convert to fraction form
    33,993.60/50,995.84 = 11,820.16/x
  3. Step 3: Cross multiply
    33,993.60x = 50,995.84 × 11,820.16
  4. Step 4: Simplify right side
    33,993.60x = 602,778,988.13
  5. Step 5: Solve for x
    x = 602,778,988.13/33,993.60
  6. Step 6: Final answer
    x = 17,732.13

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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.