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Finding the Fourth Proportional to 16,994.76, 25,497.90 and 8,781

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Solution

The fourth proportional to 16,994.76, 25,497.90 and 8,781 is: 13,174.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,994.76 : 25,497.90 = 8,781 : x
  2. Step 2: Convert to fraction form
    16,994.76/25,497.90 = 8,781/x
  3. Step 3: Cross multiply
    16,994.76x = 25,497.90 × 8,781
  4. Step 4: Simplify right side
    16,994.76x = 223,897,059.90
  5. Step 5: Solve for x
    x = 223,897,059.90/16,994.76
  6. Step 6: Final answer
    x = 13,174.48

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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.