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Finding the Fourth Proportional to 39,608.99, 59,422.80 and 11,529.65

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Solution

The fourth proportional to 39,608.99, 59,422.80 and 11,529.65 is: 17,297.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,608.99 : 59,422.80 = 11,529.65 : x
  2. Step 2: Convert to fraction form
    39,608.99/59,422.80 = 11,529.65/x
  3. Step 3: Cross multiply
    39,608.99x = 59,422.80 × 11,529.65
  4. Step 4: Simplify right side
    39,608.99x = 685,124,086.02
  5. Step 5: Solve for x
    x = 685,124,086.02/39,608.99
  6. Step 6: Final answer
    x = 17,297.19

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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.