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Finding the Fourth Proportional to 4,993.28, 7,478.04 and 4,818.32

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Solution

The fourth proportional to 4,993.28, 7,478.04 and 4,818.32 is: 7,216.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,993.28 : 7,478.04 = 4,818.32 : x
  2. Step 2: Convert to fraction form
    4,993.28/7,478.04 = 4,818.32/x
  3. Step 3: Cross multiply
    4,993.28x = 7,478.04 × 4,818.32
  4. Step 4: Simplify right side
    4,993.28x = 36,031,589.69
  5. Step 5: Solve for x
    x = 36,031,589.69/4,993.28
  6. Step 6: Final answer
    x = 7,216.02

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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.