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Finding the Fourth Proportional to 28,593.80, 39,449.99 and 17,258.99

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Solution

The fourth proportional to 28,593.80, 39,449.99 and 17,258.99 is: 23,811.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,593.80 : 39,449.99 = 17,258.99 : x
  2. Step 2: Convert to fraction form
    28,593.80/39,449.99 = 17,258.99/x
  3. Step 3: Cross multiply
    28,593.80x = 39,449.99 × 17,258.99
  4. Step 4: Simplify right side
    28,593.80x = 680,866,847.30
  5. Step 5: Solve for x
    x = 680,866,847.30/28,593.80
  6. Step 6: Final answer
    x = 23,811.70

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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.