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Finding the Fourth Proportional to 12,676.70, 19,015.05 and 4,880.05

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Solution

The fourth proportional to 12,676.70, 19,015.05 and 4,880.05 is: 7,320.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,676.70 : 19,015.05 = 4,880.05 : x
  2. Step 2: Convert to fraction form
    12,676.70/19,015.05 = 4,880.05/x
  3. Step 3: Cross multiply
    12,676.70x = 19,015.05 × 4,880.05
  4. Step 4: Simplify right side
    12,676.70x = 92,794,365.52
  5. Step 5: Solve for x
    x = 92,794,365.52/12,676.70
  6. Step 6: Final answer
    x = 7,320.07

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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.