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Finding the Fourth Proportional to 4,930.40, 7,402.80 and 2,014.40

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Solution

The fourth proportional to 4,930.40, 7,402.80 and 2,014.40 is: 3,024.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.40 : 7,402.80 = 2,014.40 : x
  2. Step 2: Convert to fraction form
    4,930.40/7,402.80 = 2,014.40/x
  3. Step 3: Cross multiply
    4,930.40x = 7,402.80 × 2,014.40
  4. Step 4: Simplify right side
    4,930.40x = 14,912,200.32
  5. Step 5: Solve for x
    x = 14,912,200.32/4,930.40
  6. Step 6: Final answer
    x = 3,024.54

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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.