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Finding the Fourth Proportional to 70,042.64, 96,659.07 and 38,212.21

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Solution

The fourth proportional to 70,042.64, 96,659.07 and 38,212.21 is: 52,732.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,042.64 : 96,659.07 = 38,212.21 : x
  2. Step 2: Convert to fraction form
    70,042.64/96,659.07 = 38,212.21/x
  3. Step 3: Cross multiply
    70,042.64x = 96,659.07 × 38,212.21
  4. Step 4: Simplify right side
    70,042.64x = 3,693,556,197.95
  5. Step 5: Solve for x
    x = 3,693,556,197.95/70,042.64
  6. Step 6: Final answer
    x = 52,732.97

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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.