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Finding the Fourth Proportional to 4,968.80, 6,856.80 and 2,730.68

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Solution

The fourth proportional to 4,968.80, 6,856.80 and 2,730.68 is: 3,768.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,968.80 : 6,856.80 = 2,730.68 : x
  2. Step 2: Convert to fraction form
    4,968.80/6,856.80 = 2,730.68/x
  3. Step 3: Cross multiply
    4,968.80x = 6,856.80 × 2,730.68
  4. Step 4: Simplify right side
    4,968.80x = 18,723,692.34
  5. Step 5: Solve for x
    x = 18,723,692.34/4,968.80
  6. Step 6: Final answer
    x = 3,768.26

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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.