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Finding the Fourth Proportional to 16,768.80, 25,114.80 and 9,856.80

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Solution

The fourth proportional to 16,768.80, 25,114.80 and 9,856.80 is: 14,762.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,768.80 : 25,114.80 = 9,856.80 : x
  2. Step 2: Convert to fraction form
    16,768.80/25,114.80 = 9,856.80/x
  3. Step 3: Cross multiply
    16,768.80x = 25,114.80 × 9,856.80
  4. Step 4: Simplify right side
    16,768.80x = 247,551,560.64
  5. Step 5: Solve for x
    x = 247,551,560.64/16,768.80
  6. Step 6: Final answer
    x = 14,762.63

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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.