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Finding the Fourth Proportional to 4,818.60, 7,232.94 and 4,274.28

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Solution

The fourth proportional to 4,818.60, 7,232.94 and 4,274.28 is: 6,415.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,818.60 : 7,232.94 = 4,274.28 : x
  2. Step 2: Convert to fraction form
    4,818.60/7,232.94 = 4,274.28/x
  3. Step 3: Cross multiply
    4,818.60x = 7,232.94 × 4,274.28
  4. Step 4: Simplify right side
    4,818.60x = 30,915,610.78
  5. Step 5: Solve for x
    x = 30,915,610.78/4,818.60
  6. Step 6: Final answer
    x = 6,415.89

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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.