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Finding the Fourth Proportional to 7,984.02, 11,019.60 and 4,797.48

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Solution

The fourth proportional to 7,984.02, 11,019.60 and 4,797.48 is: 6,621.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.02 : 11,019.60 = 4,797.48 : x
  2. Step 2: Convert to fraction form
    7,984.02/11,019.60 = 4,797.48/x
  3. Step 3: Cross multiply
    7,984.02x = 11,019.60 × 4,797.48
  4. Step 4: Simplify right side
    7,984.02x = 52,866,310.61
  5. Step 5: Solve for x
    x = 52,866,310.61/7,984.02
  6. Step 6: Final answer
    x = 6,621.52

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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.