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Finding the Fourth Proportional to 7,269.20, 10,903.80 and 4,936.40

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Solution

The fourth proportional to 7,269.20, 10,903.80 and 4,936.40 is: 7,404.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,269.20 : 10,903.80 = 4,936.40 : x
  2. Step 2: Convert to fraction form
    7,269.20/10,903.80 = 4,936.40/x
  3. Step 3: Cross multiply
    7,269.20x = 10,903.80 × 4,936.40
  4. Step 4: Simplify right side
    7,269.20x = 53,825,518.32
  5. Step 5: Solve for x
    x = 53,825,518.32/7,269.20
  6. Step 6: Final answer
    x = 7,404.60

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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.