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Finding the Fourth Proportional to 39,859.44, 59,789.16 and 34,727.28

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Solution

The fourth proportional to 39,859.44, 59,789.16 and 34,727.28 is: 52,090.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,859.44 : 59,789.16 = 34,727.28 : x
  2. Step 2: Convert to fraction form
    39,859.44/59,789.16 = 34,727.28/x
  3. Step 3: Cross multiply
    39,859.44x = 59,789.16 × 34,727.28
  4. Step 4: Simplify right side
    39,859.44x = 2,076,314,900.28
  5. Step 5: Solve for x
    x = 2,076,314,900.28/39,859.44
  6. Step 6: Final answer
    x = 52,090.92

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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.