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Finding the Fourth Proportional to 39,625.80, 59,436.54 and 13,327.80

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Solution

The fourth proportional to 39,625.80, 59,436.54 and 13,327.80 is: 19,990.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,625.80 : 59,436.54 = 13,327.80 : x
  2. Step 2: Convert to fraction form
    39,625.80/59,436.54 = 13,327.80/x
  3. Step 3: Cross multiply
    39,625.80x = 59,436.54 × 13,327.80
  4. Step 4: Simplify right side
    39,625.80x = 792,158,317.81
  5. Step 5: Solve for x
    x = 792,158,317.81/39,625.80
  6. Step 6: Final answer
    x = 19,990.97

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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.