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Finding the Fourth Proportional to 39,493.34, 58,987.80 and 35,739.30

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Solution

The fourth proportional to 39,493.34, 58,987.80 and 35,739.30 is: 53,380.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,493.34 : 58,987.80 = 35,739.30 : x
  2. Step 2: Convert to fraction form
    39,493.34/58,987.80 = 35,739.30/x
  3. Step 3: Cross multiply
    39,493.34x = 58,987.80 × 35,739.30
  4. Step 4: Simplify right side
    39,493.34x = 2,108,182,680.54
  5. Step 5: Solve for x
    x = 2,108,182,680.54/39,493.34
  6. Step 6: Final answer
    x = 53,380.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.