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Finding the Fourth Proportional to 8,296.40, 12,444.60 and 4,797.20

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Solution

The fourth proportional to 8,296.40, 12,444.60 and 4,797.20 is: 7,195.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,296.40 : 12,444.60 = 4,797.20 : x
  2. Step 2: Convert to fraction form
    8,296.40/12,444.60 = 4,797.20/x
  3. Step 3: Cross multiply
    8,296.40x = 12,444.60 × 4,797.20
  4. Step 4: Simplify right side
    8,296.40x = 59,699,235.12
  5. Step 5: Solve for x
    x = 59,699,235.12/8,296.40
  6. Step 6: Final answer
    x = 7,195.80

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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.