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Finding the Fourth Proportional to 35,512.80, 48,979.40 and 22,076.12

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Solution

The fourth proportional to 35,512.80, 48,979.40 and 22,076.12 is: 30,447.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,512.80 : 48,979.40 = 22,076.12 : x
  2. Step 2: Convert to fraction form
    35,512.80/48,979.40 = 22,076.12/x
  3. Step 3: Cross multiply
    35,512.80x = 48,979.40 × 22,076.12
  4. Step 4: Simplify right side
    35,512.80x = 1,081,275,111.93
  5. Step 5: Solve for x
    x = 1,081,275,111.93/35,512.80
  6. Step 6: Final answer
    x = 30,447.48

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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.