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Finding the Fourth Proportional to 15,888.95, 23,836.49 and 7,993.19

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Solution

The fourth proportional to 15,888.95, 23,836.49 and 7,993.19 is: 11,991.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,888.95 : 23,836.49 = 7,993.19 : x
  2. Step 2: Convert to fraction form
    15,888.95/23,836.49 = 7,993.19/x
  3. Step 3: Cross multiply
    15,888.95x = 23,836.49 × 7,993.19
  4. Step 4: Simplify right side
    15,888.95x = 190,529,593.50
  5. Step 5: Solve for x
    x = 190,529,593.50/15,888.95
  6. Step 6: Final answer
    x = 11,991.33

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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.