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Finding the Fourth Proportional to 5,021.87, 6,930.98 and 4,800.39

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Solution

The fourth proportional to 5,021.87, 6,930.98 and 4,800.39 is: 6,625.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,021.87 : 6,930.98 = 4,800.39 : x
  2. Step 2: Convert to fraction form
    5,021.87/6,930.98 = 4,800.39/x
  3. Step 3: Cross multiply
    5,021.87x = 6,930.98 × 4,800.39
  4. Step 4: Simplify right side
    5,021.87x = 33,271,383.08
  5. Step 5: Solve for x
    x = 33,271,383.08/5,021.87
  6. Step 6: Final answer
    x = 6,625.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.