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Finding the Fourth Proportional to 15,994.74, 23,992.00 and 12,487.68

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Solution

The fourth proportional to 15,994.74, 23,992.00 and 12,487.68 is: 18,731.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,994.74 : 23,992.00 = 12,487.68 : x
  2. Step 2: Convert to fraction form
    15,994.74/23,992.00 = 12,487.68/x
  3. Step 3: Cross multiply
    15,994.74x = 23,992.00 × 12,487.68
  4. Step 4: Simplify right side
    15,994.74x = 299,604,556.26
  5. Step 5: Solve for x
    x = 299,604,556.26/15,994.74
  6. Step 6: Final answer
    x = 18,731.44

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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.